Airworthiness Directive · Amendment 39-15672 · Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies

AD 2008-19-05

Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies

SupersededMentions a repeat actionEngine

Superseded. A later AD replaced this one: AD 2009-26-12. Comply with the one in force.

Published: September 15, 2008
Effective: October 20, 2008
Maker: Engine Components, Inc. (ECi)
Supersedes: Nothing

Applies to

This AD applies to the Lycoming Engines (formerly Textron Lycoming) models 320, 360, and 540 series, “Parallel Valve”, reciprocating engines listed in Table 1 of this AD, with ECi cylinder assembly, part number (P/N) AEL65102 series “Titan”, and with cylinder head, P/N AEL85099, installed.

(1) The applicable cylinder assembly serial numbers (SNs) are SN 1138-02 through SN 35171-22, (referred to in this AD as Group “A” cylinder assemblies); and

(2) SN 35239-01 through SN 37016-28 (referred to in this AD as Group “B” cylinder assemblies).

(3) Note that the cylinder assembly P/N is at the crankcase end of the cylinder assembly, and might be difficult to see. As a guide in determining if your cylinder assemblies are affected, all affected cylinder assemblies have cylinder head P/N AEL85099. The cylinder head P/N is at the top of the cylinder head, near the intake and exhaust valve springs, and is easier to locate than the cylinder assembly P/N.

(4) Note that the set of numbers appearing on the cylinder, above and to the left of the SN, in the form of “123456” is not used for determining applicability.

Table 1—Engine Models

Cylinder assembly part No.:	Installed on engine models:
AEL65102-NST04	O-320-A1B, A2B, A2C, A2D, A3A, A3B, B2B, B2C, B2D, B2E, B3B, B3C, C2B, C2C, C3B, C3C, D1A, D1AD, D1B, D1C, D1D, D1F, D2A, D2B, D2C, D2F, D2G, D2H, D2J, D3G, E1A, E1B, E1C, E1F, E1J, E2A, E2B, E2C, E2D, E2E, E2F, E2G, E2H, E3D, E3H
	IO-320-A1A, A2A, B1A, B1B, B1C, B1D, B1E, B2A, D1A, D1AD, D1B, D1C, E1A, E1B, E2A, E2B
	AEIO-320-D1B, D2B, E1A, E1B, E2A, E2B
	AIO-320-A1A, A1B, A2A, A2B, B1B, C1B
	LIO-320-B1A
AEL65102-NST05	IO-320-C1A, C1B, C1F, F1A
	LIO-320-C1A
AEL65102-NST06	O-320-A1A, A2A, A2B, A2C, A3A, A3B, A3C, E1A, E1B, E2A, E2C, (also, an O-320 model with no suffix)
	IO-320-A1A, A2A
AEL65102-NST07	IO-320-B1A, B1B
	LIO-320-B1A
AEL65102-NST08	O-320-B1A, B1B, B2A, B2B, B3A, B3B, B3C, C1A, C1B, C2A, C2B, C3A, C3B, C3C, D1A, D1B, D2A, D2B, D2C
AEL65102-NST10	O-360-A1A, A1C, A1D, A2A, A2E, A3A, A3D, A4A, B1A, B1B, B2A, B2B, C1A, C1C, C1G, C2A, C2B, C2C, C2D, D1A, D2A, D2B
	IO-360-B1A, B1B, B1C
	HO-360-A1A, B1A, B1B
	HIO-360-B1A, B1B
	AEIO-360-B1B
	O-540-A1A, A1A5, A1B5, A1C5, A1D, A1D5, A2B, A3D5, A4A5, A4B5, A4C5, A4D5, B1A5, B1B5, B1D5, B2A5, B2B5, B2C5, B2C5D, B4A5, B4B5, B4B5D, D1A5, E1A, E4A5, E4B5, E4C5, F1A5, F1B5, G1A5, G2A5
	IO-540-C1B5, C1C5, C2C, C4B5, C4B5D, C4C5, D4A5, D4B5, N1A5, N1A5D
AEL65102-NST12	O-360-A1A, A1AD, A1D, A1F, A1F6, A1F6D, A1G, A1G6, A1G6D, A1H, A1H6, A1J, A1LD, A1P, A2A, A2D, A2F, A2G, A2H, A3A, A3AD, A3D, A4A, A4AD, A4D, A4G, A4J, A4JD, A4K, A4M, A4N, A4P, A5AD, B1A, B2C, C1A, C1C, C1E, C1F, C1G, C2A, C2B, C2C, C2D, C2E, C4F, C4P, D2A, F1A6, G1A6
	HO-360-C1A
	LO-360-A1G6D, A1H6
	HIO-360-B1A, B1B, G1A
	LTO-360-A1A6D
	TO-360-A1A6D
	IO-360-B1B, B1BD, B1D, B1E, B1F, B1F6, B1G6, B2E, B2F, B2F6, B4A, E1A, L2A, M1A, M1B
	AEIO-360-B1B, B1D, B1E, B1F, B1F6, B1G6, B1H, B2F, B2F6, B4A, H1A, H1B
	O-540-A4D5, B2B5, B2C5, B2C5D, B4B5, B4B5D, E4A5, E4B5, E4B5D, E4C5, G1A5, G1A5D, G2A5, H1A5, H1A5D, H1B5, H1B5D, H2A5, H2A5D, H2B5D
	IO-540-C4B5, C4B5D, C4D5, C4D5D, D4A5, D4B5, D4C5, N1A5, N1A5D, T4A5D, T4B5, T4B5D, T4C5D, V4A5, V4A5D
	AEIO-540-D4A5, D4B5, D4C5, D4D5
AEL65102-NST26	IO-540-J4A5, R1A5
	TIO-540-C1A, E1A, G1A, H1A
AEL65102-NST38	IO-360-F1A
	TIO-540-AA1AD, AB1AD, AB1BD, AF1A, AG1A, AK1A, C1A, C1AD, K1AD
	LTIO-540-K1AD
AEL65102-NST43	O-360-J2A
	O-540-F1B5, J1A5D, J1B5D, J1C5D, J1D5D, J2A5D, J2B5D, J2C5D, J2D5D, J3A5, J3A5D, J3C5D
	IO-540-AB1A5, W1A5, W1A5D, W3A5D
AEL65102-NST44	O-540-L3C5D

For information, the Lycoming Engines (formerly Textron Lycoming) models 320, 360, and 540 series, “Parallel Valve”, reciprocating engines are installed on, but not limited to, the aircraft listed in the following Table 2:

Table 2—Engines Installed On, But Not Limited To

Engine models:	Installed on, but not limited to:
O-320-A1A	Piper Aircraft: Tri-Pacer (PA-22 “150”, PA-22S “150”), Apache (PA-23), Pawnee (PA-25).
	Doyn Aircraft: Doyn-Cessna (170, 170A, 170B).
	Mooney Aircraft: Mark (20A).
	Dinfia: Ranquel (1A-46).
	Simmering-Graz Pauker: Flamingo (SGP-M-222).
	Aviamilano: Scricciolo (P-19).
	Vos Helicopter Co.: Spring Bok.
O-320-A1B	Piper Aircraft: Tri-Pacer (PA-22 “150”, PA-22S “150”), Apache (PA-23).
	Doyn Aircraft: Doyn-Cessna (170, 170A, 170B).
	S.O.C.A.T.A.: Horizon (Gardan).
O-320-A2A	Piper Aircraft: Tri-Pacer (PA-22 “150”, PA-22S “150”), Agriculture (PA-18A “150”) Super Cub (PA-18 “150”), Caribbean (PA-22 “150”), Pawnee (PA-25).
	Intermountain Mfg. Co.: Call Air Texas (A-5, A-5T).
	Lake Aircraft: Colonial (C-1).
	Rawdon Bros.: Rawdon (T-1, T-15, T-15D).
	Shinn Engineering: Shinn (2150-A).
	Dinfia: Ranquel ((1A)46).
	Neiva: (1PD-5802).
	Sud: Gardan-Horizon (GY-80).
	LaVerda: Falco (F8L Series II, America).
	Malmo: Vipan (MF1-10).
	Kingsford Smith: Autocrat (SCRM-153).
	Aero Commander: 100.
O-320-A2B	Piper Aircraft: Tri-Pacer (PA-22 “150”, PA-22S “150”), Cherokee (PA-28 “150”), Super Cub (PA-18 “150”).
	Champion Aircraft: Challenger (7GCA, 7GCB, 7KC), Citabria (7GCAA, 7GCRC), Agriculture (7GCBA).
	Beagle: Pup (150).
	Artic: Interstate S1B2.
	Robinson: R-22.
	Varga: Kachina 2150A.
O-320-A2C	Robinson: R-22.
	Cicare: Cicare AG.
	Bellanca Aircraft: Citabria 150 (7GCAA), Citabria 150S (7GCBC).
O-320-A2D	Piper Aircraft: Apache (PA-23).
O-320-A3A	Doyn Aircraft: Doyn-Cessna (170, 170A, 170B).
	Corben-Fettes: Globe Special (Globe GC-1B).
O-320-A3B	Piper Aircraft: Apache (PA-23).
	Doyn Aircraft: Doyn-Cessna (170, 170A, 170B).
	Teal II: TSC (1A2).
O-320-B1A	Piper Aircraft: Apache (PA-23 “160”).
	Doyn Aircraft: Doyn-Cessna (170, 170A, 170B).
	Malmo: Vipan (MF1-10).
O-320-B1B	Piper Aircraft: Apache (PA-23 “160”).
	Doyn Aircraft: Doyn-Cessna (170, 170A, 170B).
O-320-B2A	Piper Aircraft: Tri-Pacer (PA-22 “160”, PA-22S “160”).
O-320-B2B	Piper Aircraft: Tri-Pacer (PA-22 “160”, PA-22S “160”).
	Beagle: Airedale (D5-160).
	Fuji-Heavy Industries: Fuji (F-200).
	Uirapuru: Aerotec 122.
O-320-B2C	Robinson: R-22.
O-320-B2D	Maule: MX-7-160.
O-320-B2E	Lycon.
O-320-B3A	Piper Aircraft: Apache (PA-23 “160”).
	Doyn Aircraft: Doyn-Cessna (170, 170A, 170B).
O-320-B3B	Piper Aircraft: Apache (PA-23 “160”).
	Doyn Aircraft: Doyn-Cessna (170, 170A, 170B).
	Sud: Gardan (GY80-160).
O-320-C1A	Piper Aircraft: Apache (PA-23 “160”).
	Riley Aircraft: Rayjay (Apache).
O-320-C1B	Piper Aircraft: Apache (PA-23 “160”).
O-320-C3A	Piper Aircraft: Apache (PA-23 “160”).
O-320-C3B	Piper Aircraft: Apache (PA-23 “160”).
O-320-D1A	Sud: Gardan (GY-80).
	Gyroflug: Speed Cancard.
	Grob: G115.
O-320-D1F	Slingsby: T67 Firefly.
O-320-D2A	Piper Aircraft: Cherokee (PA-28S “160”).
	Robin: Major (DR400-140B), Chevalier (DR-360), (R-3140).
	S.O.C.A.T.A.: Tampico TB9.
	Slingsby: T67C Firefly.
	Daetwyler: MD-3-160.
	Nash Aircraft Ltd.: Petrel.
	Aviolight: P66D Delta.
	General Avia: Pinguino.
O-320-D2B	Beech Aircraft: Musketeer (M-23).
	Piper Aircraft: Cherokee (PA-28 “160”).
O-320-D2J	Cessna Aircraft: Skyhawk 172.
O-320-D3G	Piper Aircraft: Warrior II, Cadet (PA-28-161).
O-320-E1A	Grob: G115.
O-320-E1C	M.B.B. (Messerschmitt-Boelkow-Blohm): Monsun (BO-209-B).
O-320-E1F	M.B.B.: Monsun (BO-209-B).
O-320-E2A	Piper Aircraft: Cherokee (PA-28 “140”, PA-28 “150”).
	Robin: Major (DR-340), Sitar, Bagheera (GY-100-135).
	S.O.C.A.T.A.: Super Rallye (MS-886), Rallye Commodore (MS-892).
	Siai-Marchetti: (S-202).
	F.F.A.: Bravo (AS-202/15).
	Partenavia: Oscar (P66B), Bucker (131 APM).
	Aeromot: Paulistina P-56.
	Pezetel: Koliber 150.
O-320-E2C	Beech Aircraft: Musketeer III (M-23III).
	M.B.B.: Monsun (BO-209-B).
O-320-E2D	Cessna Aircraft: Cardinal (172-I, 177).
O-320-E2F	M.B.B.: Monsun (BO-209-B), Wassmer Pacific (WA-51).
O-320-E2G	American Aviation Corp.: Traveler.
O-320-E3D	Piper Aircraft: Cherokee (140).
	Beech Aircraft: Sport.
IO-320-B2A	Piper Aircraft: Twin Comanche (PA-30).
IO-320-B1C	Hi. Shear: Wing.
IO-320-B1D	Ted Smith Aircraft: Aerostar.
IO-320-C1A	Piper Aircraft: Twin Comanche (PA-30 Turbo).
IO-320-D1A	M.B.B.: Monsun (BO-209-C).
IO-320-D1B	M.B.B.: Monsun (BO-209-C).
IO-320-E1A	M.B.B.: Monsun (BO-209-C).
IO-320-E1B	Bellanca Aircraft.
IO-320-E2A	Champion Aircraft: Citabria.
IO-320-E2B	Bellanca Aircraft.
IO-320-F1A	CAAR Engineering: Carr Midget.
LIO-320-B1A	Piper Aircraft: Twin Comanche (PA-39).
LIO-320-C1A	Piper Aircraft: Twin Comanche (PA-39).
AIO-320-B1B	M.B.B.: Monsun (BO-209-C).
AEIO-320-D1B	Slingsby: T67M Firefly.
AEIO-320-D2B	Hundustan Aeronautics Ltd.: HT-2.
AEIO-320-E1A	Bellanca Aircraft.
	Champion Aircraft.
AEIO-320-E1B	Bellanca Aircraft.
	Champion Aircraft: Decathalon (8KCAB-CS).
AEIO-320-E2B	Bellanca Aircraft.
	Champion Aircraft: Decathalon (8KCAB).
O-320-A1A.	Riley Aircraft: Riley Twin.
O-360-A1A.	Beech Aircraft: Travel Air (95, B-95).
	Piper Aircraft: Comanche (PA-24).
	Intermountain Mfg. Co.: Call Air (A-6).
	Lake Aircraft: Colonial (C-2, LA-4, 4A or 4P).
	Doyn Aircraft: Doyn-Cessna (170B, 172, 172A, 172B).
	Mooney Aircraft: Mark “20B” (M-20B).
	Earl Horton: Pawnee (Piper PA-25).
	Dinfia: Ranquel (1A-51).
	Neiva: (1PD-5901).
	Regente: (N-591).
	Wassmer: Super 4 (WA-50A), Sancy (WA-40), Baladou (WA-40), Pariou (WA-40).
	Sud: Gardan (GY-180).
	Bolkow: (207).
	Partenavia: Oscar (P-66).
	Siai-Marchetti: (S-205).
	Procaer: Picchio (F-15-A).
	S.A.A.B.: Safir (91-D).
	Malmo: Vipan (MF-10B).
	Aero Boero: AB-180.
	Beagle: Airedale (A-109).
	DeHavilland: Drover (DHA-3MK3).
	Kingsford-Smith: Bushmaster (J5-6).
	Aero Engine Service Ltd.: Victa (R-2).
O-360-A1AD	S.O.C.A.T.A.: Tabago TB-10.
O-360-A1D	Piper Aircraft: Comanche (PA-24).
	Lake Aircraft: Colonial (LA-4, 4A or 4P).
	Doyn Aircraft: Doyn-Beech (Beech 95).
	Mooney Aircraft: Master “21” (M-20E), Mark “20B”, “20D”, (M20B, M20C), Mooney Statesman (M-20G).
	Dinfia: Querandi (1A-45).
	Wassmer: (WA-50).
	Malmo: Vipan (MF1-10).
	Cessna Aircraft: Skyhawk.
	Doyn Aircraft: Doyn-Piper (PA-23 “160”).
O-360-A1F6	Cessna Aircraft: Cardinal.
O-360-A1F6D	Cessna Aircraft: Cardinal 177.
	Teal III: TSC (1A3).
O-360-A1G6	Aero Commander.
O-360-A1G6D	Beech Aircraft: Duchess 76.
O-360-A1H6	Piper Aircraft: Seminole (PA-44).
O-360-A1LD	Wassmer: Europa WA-52.
O-360-A1P	Aviat: Husky.
O-360-A2A	Center Est Aeronautique: Regente (DR-253).
	S.O.C.A.T.A.: Rallye Commodore (MS-893).
	Societe Aeronautique Normande: Mousquetaire (D-140).
	Bolkow: Klemm (K1-107C).
	Partenavia: Oscar (P-66).
	Beagle: Husky (D5-180) (J1-U).
O-360-A2D	Piper Aircraft: Comanche (PA-24), Cherokee “C” (PA-28 “180”).
	Mooney Aircraft: Master “21” (M-20D), Mark “21” (M-20E).
O-360-A2E	Std. Helicopter.
O-360-A2F	Aero Commander: Lark (100).
	Cessna Aircraft: Cardinal.
O-360-A2G	Beech Aircraft: Sport.
O-360-A3A	C.A.A.R.P.S.A.N.: (M-23III).
	Societe Aeronautique Normande: Jodel (D-140C).
	Robin: Regent (DR400/180), Remorqueur (DR400/180R). R-3170.
	S.O.C.A.T.A.: Rallye 180GT, Sportavia Sportsman (RS-180).
	Norman Aeroplace Co.: NAC-1 Freelance.
	Nash Aircraft Ltd.: Petrel.
O-360-A3AD	S.O.C.A.T.A.: TB-10.
	Robin: Aiglon (R-1180T).
O-360-A4A	Piper Aircraft: Cherokee “D” (PA-28 “180”).
O-360-A4D	Varga: Kachina.
O-360-A4G	Beech Aircraft: Musketeer Custom III.
O-360-A4K	Grumman American: Tiger.
	Beech Aircraft: Sundowner 180.
O-360-A4M	Piper Aircraft: Archer II (PA-28 “18”).
	Valmet: PIK-23.
O-360-A4N	Cessna Aircraft: 172 (Optional).
O-360-A4P	Penn Yan: Super Cub Conversion.
O-360-A5AD	C. Itoh and Co.: Fuji FA-200.
O-360-B2C	Seabird Aviation: SB7L.
O-360-C1A	Intermountain Mfg. Co.: Call Air (A-6).
O-360-C1E	Bellanca Aircraft: Scout (8GCBC-CS).
O-360-C1F	Maule: Star Rocket MX-7-180.
O-360-C1G	Christen: Husky (A-1).
O-360-C2B	Hughes Tool Co.:HIO-360-B1A (269A).
O-360-C2D	Hughes Tool Co.: (269A).
O-360-C2E	Hughes Tool Co.: (YHO-2HU) Military.
	Bellanca Aircraft: Scout (8GCBC FP).
O-360-C4F	Maule: MX-7-180A.
O-360-C4P	Penn Yan: Super Cub Conversion.
O-360-F1A6	Cessna Aircraft: Cutlass RG.
O-360-J2A	Robinson: R22.
IO-360-B1A	Beech Aircraft: Travel-Air (B-95A).
	Doyn Aircraft: Doyn-Piper (PA-23 “200”).
IO-360-B1B	Beech Aircraft: Travel-Air (B-95B).
	Doyn Aircraft: Doyn-Piper (PA-23 “200”).
	Fuji: (FA-200).
IO-360-B1D	United Consultants: See-Bee.
IO-360-B1E	Piper Aircraft: Arrow (PA-28 “180R”).
IO-360-B1F	Utva: 75.
IO-360-B2E	C.A.A.R.P.C.A.P. (10).
IO-360-B1F6	Great Lakes: Trainer.
IO-360-B1G6	American Blimp: Spector 42.
IO-360-B2F6	Great Lakes: Trainer.
LO-360-A1G6D	Beech Aircraft: Duchess.
LO-360-A1H6	Piper Aircraft: Seminole (PA-44).
IO-360-E1A	T.R. Smith Aircraft: Aerostar.
IO-360-L2A	Cessna Aircraft: Skyhawk C-172.
IO-360-M1A	Diamond Aircraft: DA-40.
IO-360-M1B	Vans Aircraft: RV6, RV7, RV8.
	Lancair: 360.
AEIO-360-B1F	F.F.A.: Bravo (200).
	Grob: G115/Sport-Acro.
AEIO-360-B1G6	Great Lakes.
AEIO-360-B2F	Mundry: CAP-10.
AEIO-360-B4A	Pitts: S-1S.
AEIO-360-H1A	Bellanca Aircraft: Super Decathalon (8KCAB-180).
AEIO-360-H1B	American Champion: Super Decathalon.
VO-360-A1A	Brantly Hynes Helicopter: (B-2).
VO-360-A1B	Brantly Hynes Helicopter: (B-2, B2-A). Military (YHO-3BR).
VO-360-B1A	Brantly Hynes Helicopter: (B-2, B2-A).
IVO-360-A1A	Brantly Hynes Helicopter: (B2-B).
HO-360-B1A	Hughes Tool Co.: (269A).
HO-360-B1B	Hughes Tool Co.: (269A).
HO-360-C1A	Schweizer: (300C).
HIO-360-B1A	Hughes Tool Co.: Military (269-A-1) (TH-55A).
HIO-360-B1B	Hughes Tool Co.: (269A).
HIO-360-G1A	Schweizer: (CB).
O-540-A1A	Rhein-Flugzeugbau: (RF-1).
O-540-A1A5	Piper Aircraft: Comanche (PA-24 “180”).
	Helio: Military (H-250).
	Yoeman Aviation: (YA-1).
O-540-A1B5	Piper Aircraft: Aztec (PA-23 “250”), Comanche (PA-24 “250”).
O-540-A1C5	Piper Aircraft: Comanche (PA-24 “250”).
O-540-A1D	Found Bros.: (FBA-2C).
	Dornier: (DO-28-B1).
O-540-A1D5	Piper Aircraft: Aztec (PA-23 “250”), Comanche (PA-24 “250”), Military Aztec (U-11A).
	Dornier: (DO-28).
O-540-A2B	Aero Commander: (500).
	Mid-States Mfg. Co.: Twin Courier (H-500) (U-5).
O-540-A3D5	Piper Aircraft: Navy Aztec (PA-23 “250”).
O-540-B1A5	Piper Aircraft: Apache (PA-23 “235”).
O-540-B1B5	Piper Aircraft: Comanche (PA-24 “250”).
	Doyn Aircraft: Doyn-Piper (PA-24 “250”).
O-540-B1D5	Wassmer: (WA-421).
O-540-B2B5	Piper Aircraft: Pawnee (PA-25 “235”), Cherokee (PA-28 “235”), Aztec (PA-23 “235”).
	Intermountain Mfg. Co.: Call Air (A-9).
	Rawdon Bros.: Rawdon (T-1).
	S.O.C.A.T.A.: Rallye 235CA.
O-540-B2C5	Piper Aircraft: Pawnee (PA-25 “235”).
O-540-B4B5	Piper Aircraft: Cherokee (PA-28 “235”).
	Embraer: Corioca (EMB-710).
	S.O.C.A.T.A.: Rallye 235GT, Rallye 235C.
	Maule: Star Rocket (MX-7-235), Super Rocket (M-6-235), Super Std. Rocket (M-7-235).
O-540-E4A5	Piper Aircraft: Comanche (PA-24 “260”).
	Aviamilano: Flamingo (F-250).
	Siai-Marchetti: (SF-260) (SF-208).
O-540-E4B5	Britten-Norman: (BN-2).
	Piper Aircraft: Cherokee Six (PA-32 “260”).
O-540-E4C5	Pilatus Britten-Norman: Islander (BN-2A-26), Islander (BN-2A-27), Islander II (BN-2B-26), Islander (BN-2A-21), Trislander (BN-2A-Mark III-2).
O-540-F1B5	Omega Aircraft: (BS-12D1).
	Robinson: (R-44).
O-540-G1A5	Piper Aircraft: Pawnee (PA-25 “260”).
O-540-H1B5D	Aero Boero: 260.
O-540-H2A5	Embraer: Impanema “AG”.
	Gippsland: GA-200.
O-540-H2B5D	Aero Boero: 260.
O-540-J1A5D	Maule: Star Rocket (MX-7-235), Super Rocket (M-6-235), Super Std. Rocket (M-7-235).
O-540-J3A5	Robin: R-3000/235.
O-540-J3A5D	Piper Aircraft: Dakota (PA-28-236).
O-540-J3C5D	Cessna Aircraft: Skylane RG.
O-540-L3C5D	Cessna Aircraft: TR-182, Turbo Skylane RG.
IO-540-C1B5	Piper Aircraft: Aztec B (PA-23 “250”), Comanche (PA-24 “250”).
IO-540-C1C5	Riley Aircraft: Turbo-Rocket.
IO-540-C4B5	Piper Aircraft: Aztec C (PA-23 “250”), Aztec F.
	Wassmer: (WA4-21).
	Avions Pierre Robin: (HR100/250).
	Bellanca Aircraft: Aries T-250.
	Aerofab: Renegade 250.
IO-540-C4D5	S.O.C.A.T.A.: TB-20.
IO-540-C4D5D	S.O.C.A.T.A.: Trinidad TB-20.
IO-540-D4A5	Piper Aircraft: Comanche (PA-24 “260”).
	Siai-Marchetti: (SF-260).
IO-540-D4B5	Cerva: (CE-43 Guepard).
IO-540-J4A5	Piper Aircraft: Aztec (PA-23 “250”).
IO-540-R1A5	Piper Aircraft: Comanche (PA-24).
IO-540-T4A5D	General Aviation: Model 114.
IO-540-T4B5	Commander: 114B.
IO-540-T4B5D	Rockwell: 114.
IO-540-T4C5D	Lake Aircraft: Seawolf.
IO-540-V4A5	Maule: MT-7-260, M-7-260.
	Aircraft Manufacturing Factory.
IO-540-V4A5D	Brooklands: Scoutmaster.
IO-540-W1A5	Maule: MX-7-235, MT-7-235, M7-235.
IO-540-W1A5D	Maule: Star Rocket (MX-7-235), Super Rocket (M-6-235), Super Std. Rocket (M-7-235).
IO-540-W3A5D	Schweizer: Power Glider.
AEIO-540-D4A5	Christen: Pitts (S-2S) (S-2B).
	Siai-Marchetti: SF-260.
	H.A.L.: HPT-32.
	Slingsby: Firefly T3A.
AEIO-540-D4B5	Moravan: Zlin-50L.
	H.A.L.: HPT-32.
AEIO-540-D4D5	Burkhart Grob: Grob G, 115T Aero.
TIO-540-C1A	Piper Aircraft: Turbo Aztec (PA-23-250).
TIO-540-K1AD	Piper Aircraft.
TIO-540-AA1AD	Aerofab Inc.: Turbo Renegade (270).
TIO-540-AB1AD	S.O.C.A.T.A.: Trinidad TC TB-21.
TIO-540-AB1BD	Schweizer.
TIO-540-AF1A	Mooney Aircraft: “TLS” M20M.
TIO-540-AG1A	Commander Aircraft: 114TC.
TIO-540-AK1A	Cessna Aircraft: Turbo Skylane T182T.
LTIO-540-K1A	Piper Aircraft.

The FAA's summary

The FAA is adopting a new airworthiness directive (AD) for Lycoming Engines (formerly Textron Lycoming) models 320, 360, and 540 series, "Parallel Valve" reciprocating engines, with certain Engine Components, Inc. (ECi) cylinder assemblies, part number (P/N) AEL65102 series "Titan", installed. This AD requires initial and repetitive visual inspections and compression tests to detect cracks at the head- to-barrel interface, replacement of cylinder assemblies found cracked, and replacement of certain cylinder assemblies, at new reduced times- in-service. This AD results from reports of 45 failures with head separations of ECi cylinder assemblies. We are issuing this AD to prevent loss of engine power due to cracks at the head-to-barrel interface in the cylinder assemblies and possible engine failure caused by separation of a cylinder head, which could result in loss of control of the aircraft.

What it requires

Compliance

You are responsible for having the actions required by this AD performed within the compliance times specified unless the actions have already been done.

Engines Not Overhauled or Cylinder Assemblies Not Replaced Since New

If your engine has not been overhauled or had any cylinder assemblies replaced since new, no further action is required.

Engines Overhauled or Cylinder Assemblies Replaced Since New

If your engine was overhauled or had a cylinder assembly replaced since new, do the following:

(1) Before further flight, inspect the maintenance records and engine logbook to determine if the overhaul or repair facility used ECi cylinder assemblies, P/N AEL65102, with cylinder head, PN AEL85099, with a SN 1138-02 through SN 35171-22, or a SN 35239-01 through SN 37016-28, installed.

(2) If the cylinder assemblies are not ECi, P/N AEL65102, no further action is required.

(3) If the cylinder assemblies are ECi, P/N AEL65102, and if the serial number is not listed in this AD, no further action is required.

(4) If the cylinder assemblies are ECi, P/N AEL65102, and if the serial number is listed in this AD, do the following:

Group “A” Cylinder Assemblies

(i) For Group “A” cylinder assemblies:

(A) Perform an initial visual inspection as specified in paragraphs (h) through (j) of this AD, and an initial compression test as specified in paragraphs (k) through (o) of this AD, within the next 10 operating hours time-in-service (TIS), if the cylinder assembly has 350 or more operating hours TIS on the effective date of this AD, but fewer than 2,000 operating hours TIS.

(B) Perform an initial visual inspection as specified in paragraphs (h) through (j) of this AD, and an initial compression test as specified in paragraphs (k) through (o) of this AD, before exceeding 350 operating hours TIS, if the cylinder assembly has fewer than 350 operating hours TIS on the effective date of this AD.

(C) Replace cylinder assemblies installed in helicopter engines within the next 25 operating hours TIS after the effective date of this AD if the cylinder assembly has 1,500 operating hours TIS or more on the effective date of this AD.

(D) Replace cylinder assemblies installed in airplane engines within the next 25 operating hours TIS after the effective date of this AD if the cylinder assembly has 2,000 operating hours TIS or more on the effective date of this AD.

(E) Perform repetitive visual inspections as specified in paragraphs (h) through (j) of this AD, and repetitive compression tests as specified in paragraphs (k) through (o) of this AD, within every 50 operating hours TIS.

(F) Replace cylinder assemblies installed in helicopter engines that pass the visual inspections and compression tests, no later than 1,500 operating hours TIS after the effective date of this AD.

(G) Replace cylinder assemblies installed in airplane engines that pass the visual inspections and compression tests, no later than 2,000 operating hours TIS after the effective date of this AD.

Group “B” Cylinder Assemblies

(ii) For Group “B” cylinder assemblies:

(A) Perform an initial visual inspection as specified in paragraphs (h) through (j) of this AD, and initial compression test as specified in paragraphs (k) through (o) of this AD, within an additional 10 operating hours TIS.

(B) Replace the cylinder assembly within the next 25 operating hours TIS after the effective date of this AD if the cylinder assembly has 350 or more operating hours TIS on the effective date of this AD.

(C) Replace cylinder assemblies that pass the initial visual inspections and compression tests, before exceeding 350 operating hours TIS after the effective date of this AD.

Visual Inspection

Visually inspect around the exhaust valve side, for cracks or any signs of black or white residue of combustion leakage from cracks.

(i) Replace cracked cylinder assemblies before further flight.

(j) Information on cylinder assembly visual inspection can be found in ECi Mandatory Service Bulletin (MSB) No. 08-1, Revision 3, dated August 19, 2008.

Cylinder Assembly Compression Test

Compression test the cylinder assembly.

(l) Information on cylinder assembly compression testing can be found in ECi MSB No. 08-1, Revision 3, dated August 19, 2008.

(m) During the compression test, if the cylinder pressure gauge reads below 70 pounds-per-square-inch, apply a water and soap solution to the side of the leaking cylinder, near the head-to-barrel interface.

(n) Replace the cylinder assembly before further flight, if air leakage and bubbles are observed on the side of the cylinder assembly, near the head-to-barrel interface.

(o) Repair or replace the engine cylinder assembly before further flight if the cause of the low gauge reading in paragraph (m) of this AD is from leaking intake or exhaust valves, or from leaking piston rings.

Prohibition of ECi Cylinder Assemblies Affected by This AD

After the effective date of this AD, do not install any ECi cylinder assembly, P/N AEL65102, with cylinder head, P/N AEL85099, and with SN 1138-02 through SN 35171-22, or SN 35239-01 through SN 37016-28, onto any engine, and do not attempt to repair or reuse these ECi cylinder assemblies.

Official sources

The Federal Register document · document E8-21125, the legal text
FAA Dynamic Regulatory System (DRS) · search 2008-19-05 for its current status and any corrections

Cylinder assembly part No.:

Installed on engine models:

AEL65102-NST04

O-320-A1B, A2B, A2C, A2D, A3A, A3B, B2B, B2C, B2D, B2E, B3B, B3C, C2B, C2C, C3B, C3C, D1A, D1AD, D1B, D1C, D1D, D1F, D2A, D2B, D2C, D2F, D2G, D2H, D2J, D3G, E1A, E1B, E1C, E1F, E1J, E2A, E2B, E2C, E2D, E2E, E2F, E2G, E2H, E3D, E3H

IO-320-A1A, A2A, B1A, B1B, B1C, B1D, B1E, B2A, D1A, D1AD, D1B, D1C, E1A, E1B, E2A, E2B

AEIO-320-D1B, D2B, E1A, E1B, E2A, E2B

AIO-320-A1A, A1B, A2A, A2B, B1B, C1B

LIO-320-B1A

AEL65102-NST05

IO-320-C1A, C1B, C1F, F1A

LIO-320-C1A

AEL65102-NST06

O-320-A1A, A2A, A2B, A2C, A3A, A3B, A3C, E1A, E1B, E2A, E2C, (also, an O-320 model with no suffix)

IO-320-A1A, A2A

AEL65102-NST07

IO-320-B1A, B1B

LIO-320-B1A

AEL65102-NST08

O-320-B1A, B1B, B2A, B2B, B3A, B3B, B3C, C1A, C1B, C2A, C2B, C3A, C3B, C3C, D1A, D1B, D2A, D2B, D2C

AEL65102-NST10

O-360-A1A, A1C, A1D, A2A, A2E, A3A, A3D, A4A, B1A, B1B, B2A, B2B, C1A, C1C, C1G, C2A, C2B, C2C, C2D, D1A, D2A, D2B

IO-360-B1A, B1B, B1C

HO-360-A1A, B1A, B1B

HIO-360-B1A, B1B

AEIO-360-B1B

O-540-A1A, A1A5, A1B5, A1C5, A1D, A1D5, A2B, A3D5, A4A5, A4B5, A4C5, A4D5, B1A5, B1B5, B1D5, B2A5, B2B5, B2C5, B2C5D, B4A5, B4B5, B4B5D, D1A5, E1A, E4A5, E4B5, E4C5, F1A5, F1B5, G1A5, G2A5

IO-540-C1B5, C1C5, C2C, C4B5, C4B5D, C4C5, D4A5, D4B5, N1A5, N1A5D

AEL65102-NST12

O-360-A1A, A1AD, A1D, A1F, A1F6, A1F6D, A1G, A1G6, A1G6D, A1H, A1H6, A1J, A1LD, A1P, A2A, A2D, A2F, A2G, A2H, A3A, A3AD, A3D, A4A, A4AD, A4D, A4G, A4J, A4JD, A4K, A4M, A4N, A4P, A5AD, B1A, B2C, C1A, C1C, C1E, C1F, C1G, C2A, C2B, C2C, C2D, C2E, C4F, C4P, D2A, F1A6, G1A6

HO-360-C1A

LO-360-A1G6D, A1H6

HIO-360-B1A, B1B, G1A

LTO-360-A1A6D

TO-360-A1A6D

IO-360-B1B, B1BD, B1D, B1E, B1F, B1F6, B1G6, B2E, B2F, B2F6, B4A, E1A, L2A, M1A, M1B

AEIO-360-B1B, B1D, B1E, B1F, B1F6, B1G6, B1H, B2F, B2F6, B4A, H1A, H1B

O-540-A4D5, B2B5, B2C5, B2C5D, B4B5, B4B5D, E4A5, E4B5, E4B5D, E4C5, G1A5, G1A5D, G2A5, H1A5, H1A5D, H1B5, H1B5D, H2A5, H2A5D, H2B5D

IO-540-C4B5, C4B5D, C4D5, C4D5D, D4A5, D4B5, D4C5, N1A5, N1A5D, T4A5D, T4B5, T4B5D, T4C5D, V4A5, V4A5D

AEIO-540-D4A5, D4B5, D4C5, D4D5

AEL65102-NST26

IO-540-J4A5, R1A5

TIO-540-C1A, E1A, G1A, H1A

AEL65102-NST38

IO-360-F1A

TIO-540-AA1AD, AB1AD, AB1BD, AF1A, AG1A, AK1A, C1A, C1AD, K1AD

LTIO-540-K1AD

AEL65102-NST43

O-360-J2A

O-540-F1B5, J1A5D, J1B5D, J1C5D, J1D5D, J2A5D, J2B5D, J2C5D, J2D5D, J3A5, J3A5D, J3C5D

IO-540-AB1A5, W1A5, W1A5D, W3A5D

AEL65102-NST44

O-540-L3C5D

Engine models:

Installed on, but not limited to:

O-320-A1A

Piper Aircraft: Tri-Pacer (PA-22 “150”, PA-22S “150”), Apache (PA-23), Pawnee (PA-25).

Doyn Aircraft: Doyn-Cessna (170, 170A, 170B).

Mooney Aircraft: Mark (20A).

Dinfia: Ranquel (1A-46).

Simmering-Graz Pauker: Flamingo (SGP-M-222).

Aviamilano: Scricciolo (P-19).

Vos Helicopter Co.: Spring Bok.

O-320-A1B

Piper Aircraft: Tri-Pacer (PA-22 “150”, PA-22S “150”), Apache (PA-23).

Doyn Aircraft: Doyn-Cessna (170, 170A, 170B).

S.O.C.A.T.A.: Horizon (Gardan).

O-320-A2A

Piper Aircraft: Tri-Pacer (PA-22 “150”, PA-22S “150”), Agriculture (PA-18A “150”) Super Cub (PA-18 “150”), Caribbean (PA-22 “150”), Pawnee (PA-25).

Intermountain Mfg. Co.: Call Air Texas (A-5, A-5T).

Lake Aircraft: Colonial (C-1).

Rawdon Bros.: Rawdon (T-1, T-15, T-15D).

Shinn Engineering: Shinn (2150-A).

Dinfia: Ranquel ((1A)46).

Neiva: (1PD-5802).

Sud: Gardan-Horizon (GY-80).

LaVerda: Falco (F8L Series II, America).

Malmo: Vipan (MF1-10).

Kingsford Smith: Autocrat (SCRM-153).

Aero Commander: 100.

O-320-A2B

Piper Aircraft: Tri-Pacer (PA-22 “150”, PA-22S “150”), Cherokee (PA-28 “150”), Super Cub (PA-18 “150”).

Champion Aircraft: Challenger (7GCA, 7GCB, 7KC), Citabria (7GCAA, 7GCRC), Agriculture (7GCBA).

Beagle: Pup (150).

Artic: Interstate S1B2.

Robinson: R-22.

Varga: Kachina 2150A.

O-320-A2C

Robinson: R-22.

Cicare: Cicare AG.

Bellanca Aircraft: Citabria 150 (7GCAA), Citabria 150S (7GCBC).

O-320-A2D

Piper Aircraft: Apache (PA-23).

O-320-A3A

Doyn Aircraft: Doyn-Cessna (170, 170A, 170B).

Corben-Fettes: Globe Special (Globe GC-1B).

O-320-A3B

Piper Aircraft: Apache (PA-23).

Doyn Aircraft: Doyn-Cessna (170, 170A, 170B).

Teal II: TSC (1A2).

O-320-B1A

Piper Aircraft: Apache (PA-23 “160”).

Doyn Aircraft: Doyn-Cessna (170, 170A, 170B).

Malmo: Vipan (MF1-10).

O-320-B1B

Piper Aircraft: Apache (PA-23 “160”).

Doyn Aircraft: Doyn-Cessna (170, 170A, 170B).

O-320-B2A

Piper Aircraft: Tri-Pacer (PA-22 “160”, PA-22S “160”).

O-320-B2B

Piper Aircraft: Tri-Pacer (PA-22 “160”, PA-22S “160”).

Beagle: Airedale (D5-160).

Fuji-Heavy Industries: Fuji (F-200).

Uirapuru: Aerotec 122.

O-320-B2C

Robinson: R-22.

O-320-B2D

Maule: MX-7-160.

O-320-B2E

Lycon.

O-320-B3A

Piper Aircraft: Apache (PA-23 “160”).

Doyn Aircraft: Doyn-Cessna (170, 170A, 170B).

O-320-B3B

Piper Aircraft: Apache (PA-23 “160”).

Doyn Aircraft: Doyn-Cessna (170, 170A, 170B).

Sud: Gardan (GY80-160).

O-320-C1A

Piper Aircraft: Apache (PA-23 “160”).

Riley Aircraft: Rayjay (Apache).

O-320-C1B

Piper Aircraft: Apache (PA-23 “160”).

O-320-C3A

Piper Aircraft: Apache (PA-23 “160”).

O-320-C3B

Piper Aircraft: Apache (PA-23 “160”).

O-320-D1A

Sud: Gardan (GY-80).

Gyroflug: Speed Cancard.

Grob: G115.

O-320-D1F

Slingsby: T67 Firefly.

O-320-D2A

Piper Aircraft: Cherokee (PA-28S “160”).

Robin: Major (DR400-140B), Chevalier (DR-360), (R-3140).

S.O.C.A.T.A.: Tampico TB9.

Slingsby: T67C Firefly.

Daetwyler: MD-3-160.

Nash Aircraft Ltd.: Petrel.

Aviolight: P66D Delta.

General Avia: Pinguino.

O-320-D2B

Beech Aircraft: Musketeer (M-23).

Piper Aircraft: Cherokee (PA-28 “160”).

O-320-D2J

Cessna Aircraft: Skyhawk 172.

O-320-D3G

Piper Aircraft: Warrior II, Cadet (PA-28-161).

O-320-E1A

Grob: G115.

O-320-E1C

M.B.B. (Messerschmitt-Boelkow-Blohm): Monsun (BO-209-B).

O-320-E1F

M.B.B.: Monsun (BO-209-B).

O-320-E2A

Piper Aircraft: Cherokee (PA-28 “140”, PA-28 “150”).

Robin: Major (DR-340), Sitar, Bagheera (GY-100-135).

S.O.C.A.T.A.: Super Rallye (MS-886), Rallye Commodore (MS-892).

Siai-Marchetti: (S-202).

F.F.A.: Bravo (AS-202/15).

Partenavia: Oscar (P66B), Bucker (131 APM).

Aeromot: Paulistina P-56.

Pezetel: Koliber 150.

O-320-E2C

Beech Aircraft: Musketeer III (M-23III).

M.B.B.: Monsun (BO-209-B).

O-320-E2D

Cessna Aircraft: Cardinal (172-I, 177).

O-320-E2F

M.B.B.: Monsun (BO-209-B), Wassmer Pacific (WA-51).

O-320-E2G

American Aviation Corp.: Traveler.

O-320-E3D

Piper Aircraft: Cherokee (140).

Beech Aircraft: Sport.

IO-320-B2A

Piper Aircraft: Twin Comanche (PA-30).

IO-320-B1C

Hi. Shear: Wing.

IO-320-B1D

Ted Smith Aircraft: Aerostar.

IO-320-C1A

Piper Aircraft: Twin Comanche (PA-30 Turbo).

IO-320-D1A

M.B.B.: Monsun (BO-209-C).

IO-320-D1B

M.B.B.: Monsun (BO-209-C).

IO-320-E1A

M.B.B.: Monsun (BO-209-C).

IO-320-E1B

Bellanca Aircraft.

IO-320-E2A

Champion Aircraft: Citabria.

IO-320-E2B

Bellanca Aircraft.

IO-320-F1A

CAAR Engineering: Carr Midget.

LIO-320-B1A

Piper Aircraft: Twin Comanche (PA-39).

LIO-320-C1A

Piper Aircraft: Twin Comanche (PA-39).

AIO-320-B1B

M.B.B.: Monsun (BO-209-C).

AEIO-320-D1B

Slingsby: T67M Firefly.

AEIO-320-D2B

Hundustan Aeronautics Ltd.: HT-2.

AEIO-320-E1A

Bellanca Aircraft.

Champion Aircraft.

AEIO-320-E1B

Bellanca Aircraft.

Champion Aircraft: Decathalon (8KCAB-CS).

AEIO-320-E2B

Bellanca Aircraft.

Champion Aircraft: Decathalon (8KCAB).

O-320-A1A.

Riley Aircraft: Riley Twin.

O-360-A1A.

Beech Aircraft: Travel Air (95, B-95).

Piper Aircraft: Comanche (PA-24).

Intermountain Mfg. Co.: Call Air (A-6).

Lake Aircraft: Colonial (C-2, LA-4, 4A or 4P).

Doyn Aircraft: Doyn-Cessna (170B, 172, 172A, 172B).

Mooney Aircraft: Mark “20B” (M-20B).

Earl Horton: Pawnee (Piper PA-25).

Dinfia: Ranquel (1A-51).

Neiva: (1PD-5901).

Regente: (N-591).

Wassmer: Super 4 (WA-50A), Sancy (WA-40), Baladou (WA-40), Pariou (WA-40).

Sud: Gardan (GY-180).

Bolkow: (207).

Partenavia: Oscar (P-66).

Siai-Marchetti: (S-205).

Procaer: Picchio (F-15-A).

S.A.A.B.: Safir (91-D).

Malmo: Vipan (MF-10B).

Aero Boero: AB-180.

Beagle: Airedale (A-109).

DeHavilland: Drover (DHA-3MK3).

Kingsford-Smith: Bushmaster (J5-6).

Aero Engine Service Ltd.: Victa (R-2).

O-360-A1AD

S.O.C.A.T.A.: Tabago TB-10.

O-360-A1D

Piper Aircraft: Comanche (PA-24).

Lake Aircraft: Colonial (LA-4, 4A or 4P).

Doyn Aircraft: Doyn-Beech (Beech 95).

Mooney Aircraft: Master “21” (M-20E), Mark “20B”, “20D”, (M20B, M20C), Mooney Statesman (M-20G).

Dinfia: Querandi (1A-45).

Wassmer: (WA-50).

Malmo: Vipan (MF1-10).

Cessna Aircraft: Skyhawk.

Doyn Aircraft: Doyn-Piper (PA-23 “160”).

O-360-A1F6

Cessna Aircraft: Cardinal.

O-360-A1F6D

Cessna Aircraft: Cardinal 177.

Teal III: TSC (1A3).

O-360-A1G6

Aero Commander.

O-360-A1G6D

Beech Aircraft: Duchess 76.

O-360-A1H6

Piper Aircraft: Seminole (PA-44).

O-360-A1LD

Wassmer: Europa WA-52.

O-360-A1P

Aviat: Husky.

O-360-A2A

Center Est Aeronautique: Regente (DR-253).

S.O.C.A.T.A.: Rallye Commodore (MS-893).

Societe Aeronautique Normande: Mousquetaire (D-140).

Bolkow: Klemm (K1-107C).

Partenavia: Oscar (P-66).

Beagle: Husky (D5-180) (J1-U).

O-360-A2D

Piper Aircraft: Comanche (PA-24), Cherokee “C” (PA-28 “180”).

Mooney Aircraft: Master “21” (M-20D), Mark “21” (M-20E).

O-360-A2E

Std. Helicopter.

O-360-A2F

Aero Commander: Lark (100).

Cessna Aircraft: Cardinal.

O-360-A2G

Beech Aircraft: Sport.

O-360-A3A

C.A.A.R.P.S.A.N.: (M-23III).

Societe Aeronautique Normande: Jodel (D-140C).

Robin: Regent (DR400/180), Remorqueur (DR400/180R). R-3170.

S.O.C.A.T.A.: Rallye 180GT, Sportavia Sportsman (RS-180).

Norman Aeroplace Co.: NAC-1 Freelance.

Nash Aircraft Ltd.: Petrel.

O-360-A3AD

S.O.C.A.T.A.: TB-10.

Robin: Aiglon (R-1180T).

O-360-A4A

Piper Aircraft: Cherokee “D” (PA-28 “180”).

O-360-A4D

Varga: Kachina.

O-360-A4G

Beech Aircraft: Musketeer Custom III.

O-360-A4K

Grumman American: Tiger.

Beech Aircraft: Sundowner 180.

O-360-A4M

Piper Aircraft: Archer II (PA-28 “18”).

Valmet: PIK-23.

O-360-A4N

Cessna Aircraft: 172 (Optional).

O-360-A4P

Penn Yan: Super Cub Conversion.

O-360-A5AD

C. Itoh and Co.: Fuji FA-200.

O-360-B2C

Seabird Aviation: SB7L.

O-360-C1A

Intermountain Mfg. Co.: Call Air (A-6).

O-360-C1E

Bellanca Aircraft: Scout (8GCBC-CS).

O-360-C1F

Maule: Star Rocket MX-7-180.

O-360-C1G

Christen: Husky (A-1).

O-360-C2B

Hughes Tool Co.:HIO-360-B1A (269A).

O-360-C2D

Hughes Tool Co.: (269A).

O-360-C2E

Hughes Tool Co.: (YHO-2HU) Military.

Bellanca Aircraft: Scout (8GCBC FP).

O-360-C4F

Maule: MX-7-180A.

O-360-C4P

Penn Yan: Super Cub Conversion.

O-360-F1A6

Cessna Aircraft: Cutlass RG.

O-360-J2A

Robinson: R22.

IO-360-B1A

Beech Aircraft: Travel-Air (B-95A).

Doyn Aircraft: Doyn-Piper (PA-23 “200”).

IO-360-B1B

Beech Aircraft: Travel-Air (B-95B).

Doyn Aircraft: Doyn-Piper (PA-23 “200”).

Fuji: (FA-200).

IO-360-B1D

United Consultants: See-Bee.

IO-360-B1E

Piper Aircraft: Arrow (PA-28 “180R”).

IO-360-B1F

Utva: 75.

IO-360-B2E

C.A.A.R.P.C.A.P. (10).

IO-360-B1F6

Great Lakes: Trainer.

IO-360-B1G6

American Blimp: Spector 42.

IO-360-B2F6

Great Lakes: Trainer.

LO-360-A1G6D

Beech Aircraft: Duchess.

LO-360-A1H6

Piper Aircraft: Seminole (PA-44).

IO-360-E1A

T.R. Smith Aircraft: Aerostar.

IO-360-L2A

Cessna Aircraft: Skyhawk C-172.

IO-360-M1A

Diamond Aircraft: DA-40.

IO-360-M1B

Vans Aircraft: RV6, RV7, RV8.

Lancair: 360.

AEIO-360-B1F

F.F.A.: Bravo (200).

Grob: G115/Sport-Acro.

AEIO-360-B1G6

Great Lakes.

AEIO-360-B2F

Mundry: CAP-10.

AEIO-360-B4A

Pitts: S-1S.

AEIO-360-H1A

Bellanca Aircraft: Super Decathalon (8KCAB-180).

AEIO-360-H1B

American Champion: Super Decathalon.

VO-360-A1A

Brantly Hynes Helicopter: (B-2).

VO-360-A1B

Brantly Hynes Helicopter: (B-2, B2-A). Military (YHO-3BR).

VO-360-B1A

Brantly Hynes Helicopter: (B-2, B2-A).

IVO-360-A1A

Brantly Hynes Helicopter: (B2-B).

HO-360-B1A

Hughes Tool Co.: (269A).

HO-360-B1B

Hughes Tool Co.: (269A).

HO-360-C1A

Schweizer: (300C).

HIO-360-B1A

Hughes Tool Co.: Military (269-A-1) (TH-55A).

HIO-360-B1B

Hughes Tool Co.: (269A).

HIO-360-G1A

Schweizer: (CB).

O-540-A1A

Rhein-Flugzeugbau: (RF-1).

O-540-A1A5

Piper Aircraft: Comanche (PA-24 “180”).

Helio: Military (H-250).

Yoeman Aviation: (YA-1).

O-540-A1B5

Piper Aircraft: Aztec (PA-23 “250”), Comanche (PA-24 “250”).

O-540-A1C5

Piper Aircraft: Comanche (PA-24 “250”).

O-540-A1D

Found Bros.: (FBA-2C).

Dornier: (DO-28-B1).

O-540-A1D5

Piper Aircraft: Aztec (PA-23 “250”), Comanche (PA-24 “250”), Military Aztec (U-11A).

Dornier: (DO-28).

O-540-A2B

Aero Commander: (500).

Mid-States Mfg. Co.: Twin Courier (H-500) (U-5).

O-540-A3D5

Piper Aircraft: Navy Aztec (PA-23 “250”).

O-540-B1A5

Piper Aircraft: Apache (PA-23 “235”).

O-540-B1B5

Piper Aircraft: Comanche (PA-24 “250”).

Doyn Aircraft: Doyn-Piper (PA-24 “250”).

O-540-B1D5

Wassmer: (WA-421).

O-540-B2B5

Piper Aircraft: Pawnee (PA-25 “235”), Cherokee (PA-28 “235”), Aztec (PA-23 “235”).

Intermountain Mfg. Co.: Call Air (A-9).

Rawdon Bros.: Rawdon (T-1).

S.O.C.A.T.A.: Rallye 235CA.

O-540-B2C5

Piper Aircraft: Pawnee (PA-25 “235”).

O-540-B4B5

Piper Aircraft: Cherokee (PA-28 “235”).

Embraer: Corioca (EMB-710).

S.O.C.A.T.A.: Rallye 235GT, Rallye 235C.

Maule: Star Rocket (MX-7-235), Super Rocket (M-6-235), Super Std. Rocket (M-7-235).

O-540-E4A5

Piper Aircraft: Comanche (PA-24 “260”).

Aviamilano: Flamingo (F-250).

Siai-Marchetti: (SF-260) (SF-208).

O-540-E4B5

Britten-Norman: (BN-2).

Piper Aircraft: Cherokee Six (PA-32 “260”).

O-540-E4C5

Pilatus Britten-Norman: Islander (BN-2A-26), Islander (BN-2A-27), Islander II (BN-2B-26), Islander (BN-2A-21), Trislander (BN-2A-Mark III-2).

O-540-F1B5

Omega Aircraft: (BS-12D1).

Robinson: (R-44).

O-540-G1A5

Piper Aircraft: Pawnee (PA-25 “260”).

O-540-H1B5D

Aero Boero: 260.

O-540-H2A5

Embraer: Impanema “AG”.

Gippsland: GA-200.

O-540-H2B5D

Aero Boero: 260.

O-540-J1A5D

Maule: Star Rocket (MX-7-235), Super Rocket (M-6-235), Super Std. Rocket (M-7-235).

O-540-J3A5

Robin: R-3000/235.

O-540-J3A5D

Piper Aircraft: Dakota (PA-28-236).

O-540-J3C5D

Cessna Aircraft: Skylane RG.

O-540-L3C5D

Cessna Aircraft: TR-182, Turbo Skylane RG.

IO-540-C1B5

Piper Aircraft: Aztec B (PA-23 “250”), Comanche (PA-24 “250”).

IO-540-C1C5

Riley Aircraft: Turbo-Rocket.

IO-540-C4B5

Piper Aircraft: Aztec C (PA-23 “250”), Aztec F.

Wassmer: (WA4-21).

Avions Pierre Robin: (HR100/250).

Bellanca Aircraft: Aries T-250.

Aerofab: Renegade 250.

IO-540-C4D5

S.O.C.A.T.A.: TB-20.

IO-540-C4D5D

S.O.C.A.T.A.: Trinidad TB-20.

IO-540-D4A5

Piper Aircraft: Comanche (PA-24 “260”).

Siai-Marchetti: (SF-260).

IO-540-D4B5

Cerva: (CE-43 Guepard).

IO-540-J4A5

Piper Aircraft: Aztec (PA-23 “250”).

IO-540-R1A5

Piper Aircraft: Comanche (PA-24).

IO-540-T4A5D

General Aviation: Model 114.

IO-540-T4B5

Commander: 114B.

IO-540-T4B5D

Rockwell: 114.

IO-540-T4C5D

Lake Aircraft: Seawolf.

IO-540-V4A5

Maule: MT-7-260, M-7-260.

Aircraft Manufacturing Factory.

IO-540-V4A5D

Brooklands: Scoutmaster.

IO-540-W1A5

Maule: MX-7-235, MT-7-235, M7-235.

IO-540-W1A5D

Maule: Star Rocket (MX-7-235), Super Rocket (M-6-235), Super Std. Rocket (M-7-235).

IO-540-W3A5D

Schweizer: Power Glider.

AEIO-540-D4A5

Christen: Pitts (S-2S) (S-2B).

Siai-Marchetti: SF-260.

H.A.L.: HPT-32.

Slingsby: Firefly T3A.

AEIO-540-D4B5

Moravan: Zlin-50L.

H.A.L.: HPT-32.

AEIO-540-D4D5

Burkhart Grob: Grob G, 115T Aero.

TIO-540-C1A

Piper Aircraft: Turbo Aztec (PA-23-250).

TIO-540-K1AD

Piper Aircraft.

TIO-540-AA1AD

Aerofab Inc.: Turbo Renegade (270).

TIO-540-AB1AD

S.O.C.A.T.A.: Trinidad TC TB-21.

TIO-540-AB1BD

Schweizer.

TIO-540-AF1A

Mooney Aircraft: “TLS” M20M.

TIO-540-AG1A

Commander Aircraft: 114TC.

TIO-540-AK1A

Cessna Aircraft: Turbo Skylane T182T.

LTIO-540-K1A

Piper Aircraft.