Airworthiness Directive · Amendment 39-13772 · Cessna Aircraft Company Models 208 and 208B Airplanes
Cessna Aircraft Company Models 208 and 208B Airplanes
This AD affects the following airplane models and serial numbers that are certificated in any category:
(1) Group 1 (retains the actions from AD 2003-21-04, and adds all flap bellcranks to the applicability):
| Model | Serial Nos. |
|---|---|
| 208 | 20800001 through 20800369. |
| 208B | 208B0001 through 208B1014, 208B1017, 208B1018, 208B1020 through 208B1024, 208B1026, and 208B1029 through 208B1033. |
(2) Group 2 (retains the requirement of AD 2002-22-17 that you repetitively inspect the inboard forward flap bellcranks for cracks, eventually replace these bellcranks, and provides the option of installing the new design flap bellcrank to increase the life limits and terminate the repetitive inspections): Models 208 and 208B airplanes, all serial numbers.
The FAA supersedes Airworthiness Directive (AD) AD 2002-22-17, which applies to all Cessna Aircraft Company (Cessna) Models 208 and 208B airplanes; and AD 2003-21-04, which applies to certain Cessna Models 208 and 208B airplanes. This AD requires you to repetitively inspect the flap bellcranks for cracks and eventually replace these bellcranks. The installation of a newly designed bellcrank to increase the life limits is terminating action for the repetitive inspections. This AD is the result of these developments: Since FAA issued AD 2002- 22-17 and AD 2003-21-04, Cessna designed a new flap bell crank with a life limit of 40,000 landings instead of 7,000 landings. Also, FAA has done more analysis and examination of cracks and missing/incomplete welds in all of the bell cranks. This failure could lead to damage to the flap system and surrounding structure and result in reduced or loss of control of the airplane.
To address this problem for Group 1 airplanes, you must do the following:
| Actions | Compliance | Procedures |
|---|---|---|
| (1) Inspect the right inboard forward flap bellcrank assembly for cracks, deformation, and missing/incomplete welds. The affected flap bellcrank incorporates one of the following part numbers (P/N): (i) P/N 2622083-18; (ii) P/N 2622281-2; (iii) P/N 2692001-2; or (iv) P/N 2622281-12. | Within the next 25 landings after October 21, 2003 (the effective date of AD 2003-21-04). If landings are unknown, then you may multiply hours time-in-service (TIS) by 1.25. For the purposes of this AD, you may substitute 20 hours TIS for 25 landings | Use a flashlight and a mirror as necessary to see if welds (1), (4), (5), and (6) exist and are at least 0.06-inch thick around the full circumference of the shaft. These welds and the inspection procedures are referenced in Figure 1, details A, B, and C; and Views A-A and B-B of Cessna Caravan Service Bulletin No.: CAB03-11, Revision 1, dated September 24, 2003. |
| (2) Inspect the left inboard forward bellcrank for cracks, deformation, and missing/incomplete welds. The affected flap bellcrank incorporates one of the following part P/Ns: (i) P/N 262283-15; or (ii) P/N 262281-1. | Within the next 25 landings after September 26, 2004, the effective date of this AD. If landings are unknown, then you may multiply hours TIS by 1.25. For the purposes of this AD, you may substitute 20 hours TIS for 25 landings | Use a flashlight and a mirror as necessary to see if welds (1) through (4) exist and are at least 0.06-inch thick around the full circumference of the shaft. These welds and the inspection procedures are referenced in Figure 2, details A, B, and C; and Views A-A and B-B of Cessna Caravan Service Bulletin No.: CAB03-11, Revision 1, dated September 24, 2003. |
| (3) Inspect the inboard aft bellcrank for cracks, deformation, and missing/incomplete welds. The affected flap bellcrank incorporates one of the following P/Ns: (i) P/N 2622267-1; or (ii) P/N 2622267-2; (iii) P/N 2622267-7; (iv) P/N 2622267-8; (v) P/N 2622083-1; or (vi) P/N 2622083-2. | Within the next 25 landings after September 26, 2004, the effective date of this AD. If landings are unknown, then you may multiply hours TIS by 1.25. For the purposes of this AD, you may substitute 20 hours TIS for 25 landings | Use a flashlight and a mirror as necessary to see if welds (1), (2), (4), and (5) exist and are at least 0.05-inch thick around the full circumference of the shaft. These welds and the inspection procedures are referenced in Figure 3, details A, B, and C; and Views A-A and B-B of Cessna Caravan Service Bulletin No.: CAB03-11, Revision 1, dated September 24, 2003. |
| (4) Inspect the outboard bellcrank for cracks, deformation, and missing/incomplete welds. The affected flap bellcrank incorporates one of the following P/Ns: (i) P/N 2622091-1; or (ii) P/N 2622091-2; (iii) P/N 2622091-9; (iv) P/N 2622091-10; (v) P/N 2622091-17; or (vi) P/N 2622091-28. | Within the next 25 landings after September 26, 2004, the effective date of this AD. If lands are unknown, then you may multiply hours TIS by 1.25. For the purposes of this AD, you may substitute 20 hours TIS for 25 landings | Use a flashlight and a mirror as necessary to see if welds (1) through (4) exist and are at least 0.05-inch thick around the full circumference of the shaft. These welds and the inspection procedures are referenced in Figure 4, details A, B, and C; and Views A-A and B-B of Cessna Caravan Service Bulletin No.: CAB03-11, Revision 1, dated September 24, 2003. |
| (5) If you find cracks, deformation, or missing/incomplete welds during the inspection required by paragraphs (e)(1) through (e)(4) of this AD, then do one of the following: (1) Replace the bellcrank with a new bellcrank; or (ii) Prohibit the use of flaps through the actions of paragraph (g) of this AD. | Replace or do the flap prohibition actions before further flight after the inspection required in paragraphs (e)(1) through (e)(4) of this AD. If you choose the flap prohibition, you must have the replacement done within 200 hours TIS after the inspection required by paragraphs (e)(1) through (e)(4) of this AD. After the new flap bellcrank is installed, the Temporary Revision 208PHTR02, dated September 23, 2003, should be removed | Replacement: Use the Accomplishment Instructions of Cessna Caravan Service bulletin No.: CAB02-12, Revision 1, dated January 27, 2003, and the Accomplishment Instructions of Cessna Caravan Service Kit No.: SK208-148A, dated January 27, 2003, or refer to the Maintenance Manual, Chapter 27, Flap System—Maintenance Practices, for bellcrank removal and installation procedures. Flap Prohibition: Use the information in the Temporary Revision 208PHTR02, dated September 23, 2003. The action is referenced in Cessna Caravan Service Bulletin No.: CAB03-11, Revision 1, dated September 24, 2003. |
To address this problem for Group 2 airplanes, you must do the following:
| Actions | Compliance | Procedures |
|---|---|---|
| (1) Repetitive Inspections: Inspect, using eddy current method, any inboard forward flap bellcrank (P/N 2622281-2, 2622281-12, 2692001-2, or FAA-approved equivalent P/N) for cracks | Initially inspect upon the accumulation of 4,000 landings on the bellcrank or within the next 250 landings after December 31, 2002 (the effective date of AD 2002-22-17), whichever occurs later | Follow the Inspection Instructions of Cessna Caravan Service Bulletin No.: CAB02-1, dated February 11, 2002, and the applicable maintenance manual. |
| Repetitively inspect thereafter at every 500 landings until 7,000 landings are accumulated at which time you must replace as required in paragraphs (f)(2) and (f)(3) of this AD. No repetitive inspections are required when a P/N 2622311-7 (or FAA-approved equivalent P/N) inboard forward flap bellcrank is installed | ||
| (2) Initial Replacement: Replace any inboard forward flap bellcrank (P/N 2622281-2, 2622281-12, 2692001-2, or FAA-approved equivalent P/N) with either: (i) a new flap bellcrank with the same P/N 2622281-2, 26228-12, 269001-2, or FAA-approved or equivalent P/N; or (ii) a new flap bellcrank (P/M 262231-7 or FAA-approved equivalent P/N). | If cracks are found, replace or do the flap prohibition actions before further flight after the inspection required in paragraphs (f)(1) of this AD. If you choose the flap prohibition, you must have the replacement done within 200 hours TIS after the inspection required by paragraphs (f)(1) of this AD. After the new flap bellcrank is installed, the Temporary Revision 208PHTR02, dated September 23, 2003, should be removed. If cracks are not found, initially replace at whichever occurs later: upon the accumulation of 7,000 landings on the bellcrank or within the next 75 landings after December 31, 2002 (the effective date of AD 2002-22-17) | Replacement: For flap bellcrank (P/N 2622281-2, 2622281-12, 2692001-2, or FAA-approved equivalent P/N): Follow the Instructions of Cessna Caravan Service Bulletin No.: CAB02-1, dated February 11, 2002, and the applicable maintenance manual. For new flap bellcrank (P/N 2622311-7 or FAA-approved equivalent P/N): Follow the Accomplishment Instructions of Cessna Caravan Service Bulletin No.: CAB02-12, Revision 1, dated January 27, 2003, and the Accomplishment Instructions of Cessna Caravan Service Kit No.: SK208-148A, dated January 27, 2003. Flap Prohibitions: Use the information in the Temporary Revision 208PHTR02, dated September 23, 2003. |
| (3) Life Limits (Repetitive Replacements): (i) The life limit for the inboard forward flap bellcranks (P/N 2622281-2, 2622281-12, 2692001-2, or FAA-approved equivalent P/N) is 7,000 landings. Repetitive inspections every 500 landings begin at 4,000 landings (see paragraph (f)(1) of this AD.) (ii) The life limit for the inboard forward flap bellcranks (P/N 2622311-7 or FAA-approved equivalent P/N) is 40,000 landings. No repetitive inspections are required on these bellcranks. | Replace at the applicable referenced life limits | Use the service information referenced in paragraph (f)(2) of this AD. |
Note 1: Inboard forward flap bellcranks (P/N 2622281-2, 2622281-12, or 2692001-2) with 7,000 landings or more do not have to be replaced until 75 landings after December 31, 2002 (the effective date of AD 2002-22-17), unless found cracked.
Note 2: The compliance times of this AD are presented in landings instead of hours TIS. If the number of landings is unknown, hours TIS may be used by multiplying the number of hours TIS by 1.25.
Insert Temporary Revision, 208PHTR02, dated September 23, 2003, into the applicable pilot's operating handbook and FAA-approved airplane flight manual. The owner/operator holding at least a private pilot certificate as authorized by section 43.7 of the Federal Aviation Regulations (14 CFR 43.7) may incorporate this information into the AFM. Make an entry into the aircraft records showing compliance with this portion of the AD in accordance with section 43.9 of the Federal Aviation Regulations (14 CFR 43.9).
(1) This procedure applies to Cessna Models 208 and 208B landplanes. For other FAA-approved aircraft configurations (for example, amphibian, floatplanes, and so forth), you must operate with flaps up per the appropriate airplane flight manual supplement.
(2) This procedure allows for applicable deviation from the Master Minimum Equipment List (MMEL) for these airplanes until the flap bell crank is replaced. The applicable MMEL requirements go back into effect at the time of flap bell crank replacement.
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.
Aircraft
