Airworthiness Directive · Amendment 39-14778 · Lycoming Engines (L)O-360, (L)IO-360, AEIO-360, O-540, IO-540, AEIO-540, (L)TIO-540, IO-580, and IO-720 Series Reciprocating Engines.
Lycoming Engines (L)O-360, (L)IO-360, AEIO-360, O-540, IO-540, AEIO-540, (L)TIO-540, IO-580, and IO-720 Series Reciprocating Engines.
Superseded. A later AD replaced this one: AD 2012-19-01. Comply with the one in force.
This AD applies to those Lycoming Engines (L)O-360, (L)IO-360, AEIO-360, O-540, IO-540, AEIO-540, (L)TIO-540, IO-580, and IO-720 series reciprocating engines listed by engine model number and serial number in Table 1, Table 2, Table 3, or Table 4 of Lycoming Mandatory Service Bulletin (MSB) 569A, dated April 11, 2006, and those engines with crankshafts listed by crankshaft serial number in Table 5 of Lycoming MSB 569A, dated April 11, 2006. These applicable engines are manufactured new or rebuilt, overhauled, or had a crankshaft installed after March 1, 1997. These engines are installed on, but not limited to, the following aircraft:
| Engine model | Manufacturer | Aircraft model |
|---|---|---|
| AEIO-360-A1B6 | Moravan | Z242L Zlin. |
| Scottish Avia | Bulldog. | |
| Valmet | Leko 70. | |
| AEIO-360-A1E6 | Integrated Systems | Omega. |
| IO-360-A1B6 | Aircraft Manufacturing Factory | Mushshak. |
| Beech | C-24R Sierra or 200 Sierra. | |
| Cessna | R-G Cardinal. | |
| Korean Air | Chang Gong-91. | |
| Partenavia | P-68C. | |
| Saab | MFI-15 Safari, MFI-17 Supporter. | |
| Scottish Avia | Bulldog. | |
| IO-360-A1B6D | Cessna | R-6 Cardinal. |
| Siai Marchetti | S-205. | |
| IO-360-A3B6 | Mod Works | Trophy 212 Conversion. |
| IO-360-A3B6D | Mooney | M20J-201. |
| IO-360-B1G6 | American | Blimp Spector 42. |
| IO-360-C1C6 | Piper Aircraft | PA-28-200R Arrow IV. |
| Ruschmeyer | MF-85. | |
| IO-360-C1D6 | M.B.B. | Flamingo 223. |
| Rockwell | 112. | |
| IO-360-C1E6 | Piper | PA-34-200 Seneca I. |
| IO-360-C1G6 | Zeppelin | NT. |
| IO-360-X178 | Ly-Con | STC. |
| (L)O-360-A1G6D | Beech | 76 Duchess. |
| (L)O-360-A1H6 | Piper | PA-44 Seminole. |
| O-360-A1F6 | Cessna | 177 Cardinal. |
| O-360-A1F6D | Cessna | 177 Cardinal. |
| Teal III | TSC 1A3. | |
| O-360-A1G6D | Beech | 76 Duchess. |
| O-360-A1H6 | Piper | PA-44 Seminole. |
| O-360-E1A6D | Piper | PA-44-180 Seminole. |
| O-360-F1A6 | Cessna | C-172RG Cutlass RG. |
| AEIO-540-D4A5 | Christen | Pitts S-2S, S-2B. |
| H.A.L. | HPT-32. | |
| Siai-Marchetti | SF-260. | |
| Slingsby | T3A Firefly. | |
| AEIO-540-L1B5 | Extra-Flugzeugbau | Extra 300. |
| F.F.A. | FFA-2000 Eurotrainer. | |
| AEIO-540-L1D5 | Apex | Apex. |
| IO-540-AA1A5 | Piper | 602P Sequoia. |
| IO-540-AB1A5 | Cessna | C-182 Skylane. |
| IO-540-AC1A5 | Cessna | C-206 Stationair. |
| IO-540-AE1A5 | Robinson | R44. |
| IO-540-C4B5 | Aerofab | 250 Renegade. |
| Avions Pierre Robin | HR100/250. | |
| Bellanca | T-250 Aries. | |
| Piper | Aztec C PA-23 “250”, Aztec F. | |
| Wassmer | WA4-21. | |
| IO-540-C4D5 | S.O.C.A.T.A. | TB-20. |
| IO-540-C4D5D | S.O.C.A.T.A. | TB-20 Trinidad. |
| IO-540-D4A5 | Piper | PA-24 260 Comanche. |
| Siai-Marchetti | SF-260. | |
| IO-540-D4B5 | Cerva | CF-34 Guepard. |
| IO-540-E1A5 | Aero Commander | 500-E. |
| IO-540-E1B5 | Aero Commander | 500-U. |
| Poeschel | P-300. | |
| Shrike | 500-S. | |
| IO-540-J4A5 | Piper | Aztec PA-23 “250”. |
| IO-540-K1A5 | Aeronautica Agricula Mexicana | Quail. |
| Celair | Eagle. | |
| Embraer | EMB-720 Minuano, EMB-721 Sertanejo. | |
| Piper | PA-32-300 Cherokee Six. | |
| IO-540-K1A5D | Piper | PA-32-300. |
| IO-540-K1B5 | Evangel-Air | Evangel-Air. |
| Pilotus Britton-Norman | BN-2B Islander. | |
| Transavara | T-300 Skyfarmer. | |
| IO-540-K1E5 | Bellanca | Bellanca. |
| IO-540-K1F5 | Ted Smith | Aerostar 600. |
| IO-540-K1G5 | Embraer | EMB-720 Minuano. |
| Piper | Saratoga PA-32-300, Brave 300. | |
| IO-540-K1G5D | Embraer | EMB-721 Sertanejo. |
| Piper | PA-32-300R Lance, SP PA-32-300R Saratoga. | |
| IO-540-K1H5 | Seawind | Seawind. |
| IO-540-K1J5 | Piper | 600A Aerostar. |
| IO-540-K1J5D | Embraer | EMB-201 Ipanema. |
| IO-540-K1K5 | Piper | T35. |
| IO-540-L1C5 | Swearingen | SX300. |
| IO-540-M1A5 | Piper | PA-31-300 Navajo. |
| IO-540-M1C5 | King Engineering | Angel. |
| IO-540-S1A5 | Piper | 601B Aerostar, 601P Aerostar. |
| IO-540-T4A5D | General Aviation | Model 114. |
| IO-540-T4B5 | Commander | 114B. |
| IO-540-T4B5D | Rockwell | 114. |
| IO-540-V4A5 | Aircraft Manufacturing Factory | Aircraft Manufacturing Factory. |
| Maule | MT-7-260, M-7-260. | |
| IO-540-W1A5 | Maule | MX-7-235, MT-7-235, M7-235. |
| IO-540-X160 | Airship Management | Airship Management. |
| IO-540-X170 | Robinson | Robinson. |
| O-540-A1A5 | Helio | Military H-250. |
| O-540-A1B5 | Piper | PA-32 “250” Aztec, PA-24 “250” Comanche. |
| O-540-A1C5 | Piper | PA-24 “250” Comanche. |
| O-540-A1D5 | Piper | PA-24 “250” Comanche. |
| O-540-A4D5 | American Champion | American Champion. |
| Gomozig | Gomozig. | |
| Avipro | Bearhawk. | |
| O-540-B1A5 | Piper | PA-23 “235” Apache. |
| O-540-B2B5 | S.O.C.A.T.A. | 235CA Rallye. |
| O-540-B2C5 | Piper | PA-24 “235” Pawnee. |
| O-540-B4B5 | Embraer | EMB-710 Corioca. |
| Maule | MX-7-235 Star Rocket, M-6-235 Super Rocket, M-7-235 Super Rocket. | |
| Piper | PA-28 “235” Cherokee. | |
| S.O.C.A.T.A. | 235GT Rallye, 235C Rallye. | |
| O-540-E4A5 | Aviamilano | F-250 Flamingo. |
| Piper | PA-24 “260” Comanche. | |
| Siai-Marchetti | SF-260, SF-208. | |
| O-540-E4B5 | Britton-Norman | BN-2. |
| Piper | PA-32 “260” Cherokee Six. | |
| O-540-E4C5 | Pilotus Britton-Norman | BN-2A-26 Islander; BN-2A-27 Islander; BN-2B-26 Islander II; BN-2A-21 Islander; BN-2A-Mark III-2 Trislander. |
| O-540-F1B5 | Robinson | R-44. |
| O-540-G1A5 | Piper | PA-25 “260” Pawnee. |
| O-540-J1A5D | Maule | MX-7-235 Star Rocket, M-6-235 Super Rocket, M-7-235 Super Rocket. |
| O-540-J3A5 | Robin | R-3000/235. |
| O-540-J3A5D | Piper | PA-28-236 Dakota. |
| O-540-J3C5D | Cessna | R-182 Skylane. |
| O-540-L3C5D | Cessna | TR-182 Turbo Skylane. |
| TIO-540-AA1AD | Aerofab Inc | 270 Turbo Renegade. |
| TIO-540-AB1AD | S.O.C.A.T.A. | TC TB-21 Trinidad. |
| TIO-540-AE2A | Piper | PA-46-350P Mirage. |
| TIO-540-AF1B | Mooney | TLS M20M. |
| TIO-540-AG1A | Commander Aircraft | 112TC. |
| TIO-540-AH1A | Piper | TC PA-32-301T TurboSaratoga. |
| TIO-540-AK1A | Cessna | T182T Turbo Skylane. |
| TIO-540-C1A | Piper | PA-23-250 Turbo Aztec. |
| TIO-540-J2B | Piper | T-1020. |
| TIO-540-U2A | Piper | 700P Aerostar. |
| TIO-540-W2A | Aero Mercantil | Gavilan. |
| TIO-540-X136 | Schweizer | Schweizer. |
| TIO-540-X155 | Cessna | T182 (AK1A). |
| IO-720-D1B | Embraer | EMB-400 Ipanema, IAR-821. |
| Nauchang | N5. | |
| IO-720-D1C | Piper | PA-36-375 Brave. |
The FAA is adopting a new airworthiness directive (AD) for certain Lycoming Engines (L)O-360, (L)IO-360, AEIO-360, O-540, IO-540, AEIO-540, (L)TIO-540, IO-580, and IO-720 series reciprocating engines. This AD requires replacing certain crankshafts. This AD results from reports of 23 confirmed failures of similar crankshafts in Lycoming Engines 360 and 540 series reciprocating engines. We are issuing this AD to prevent failure of the crankshaft, which will result in total engine power loss, in-flight engine failure, and possible loss of the aircraft.
You are responsible for having the actions required by this AD performed within the compliance times specified unless the actions have already been done.
If your engine meets any of the following conditions, and you have not had the crankshaft replaced since meeting the condition, no further action is required:
(1) Engines that are in compliance with Lycoming MSB No. 552 (AD 2002-19-03) or MSB No. 553 (AD 2002-19-03 Table 3 or Table 5); or
(2) Engines that are in compliance with Lycoming MSB No. 566 AD (2005-19-11); or
(3) Engines that are in compliance with Lycoming Supplement No. 1 to MSB No. 566 (AD 2006-06-16); or
(4) Engines that are in compliance with the original issue of Lycoming MSB No. 569, or MSB No. 569A.
(5) For engines identified in paragraphs (f), (g), (h), or (i) of this AD, owners or operators may make an entry in the AD status log required by 14 CFR 91.417(a)(2)(v) that this AD required no action for compliance.
(g) If Lycoming Engines manufactured new, rebuilt, overhauled, or repaired your engine, or replaced the crankshaft in your engine before March 1, 1997, and you have not had the crankshaft replaced, no further action is required.
(h) If Table 1, Table 2, Table 3, or Table 4 of Lycoming MSB No. 569A, dated April 11, 2006, lists your engine serial number (SN), and Table 5 of MSB No. 569A, dated April 11, 2006, does not list your crankshaft SN, no further action is required.
(i) For engine model TIO-540-U2A, SN L-4641-61A, no action is required.
If Table 1, Table 2, Table 3, or Table 4 of Lycoming MSB No. 569A, dated April 11, 2006, lists your engine SN, and Table 5 of MSB No. 569A, dated April 11, 2006, lists your crankshaft SN, replace the affected crankshaft with a crankshaft that is not listed in Table 5 of MSB No. 569A at the earliest of the following:
(1) The time of the next engine overhaul as specified in Lycoming Engines Service Instruction No. 1009AS, dated May 25, 2006; or
(2) The next separation of the crankcase; or
(3) No later than 12 years from the time the crankshaft first entered service or was last overhauled, whichever is later.
(k) If Table 1, Table 2, Table 3, or Table 4 of Lycoming MSB No. 569A, dated April 11, 2006, does not list your engine SN, and Table 5 of MSB No. 569A does list your crankshaft SN (an affected crankshaft was installed as a replacement), replace the affected crankshaft with a crankshaft that is not listed in Table 5 of MSB No. 569A at the earliest of the following:
(1) The time of the next engine overhaul as specified in Lycoming Engines Service Instruction No. 1009AS, dated May 25, 2006; or
(2) The next separation of the crankcase; or
(3) No later than 12 years from the time the crankshaft first entered service or was last overhauled, whichever is later.
After the effective date of this AD, do not install any crankshaft that has a SN listed in Table 5 of Lycoming MSB No. 569A, dated April 11, 2006, into any engine.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
