2011-26-07: Engine

Adoption of the Amendment Accordingly, under the authority delegated to me by the Administrator, the FAA amends 14 CFR part 39 as follows: PART 39--AIRWORTHINESS DIRECTIVES 0 1. The authority citation for part 39 continues to read as follows: Authority: 49 U.S.C. 106(g), 40113, 44701. Sec. 39.13 [Amended] 0 2. The FAA amends Sec. 39.13 by removing airworthiness directive (AD) 2002-13-04, Amendment 39-12792 (67 FR 43230, June 27, 2002), and adding the following new AD: 2011-26-07 Teledyne Continental Motors (TCM) and Rolls-Royce Motors Ltd. (R-RM) Series Reciprocating Engines: Amendment 39-16897; Docket No. FAA-2011-0085; Directorate Identifier 2000-NE-19-AD. (a) Effective Date This airworthiness directive (AD) is effective January 24, 2012. (b) Affected ADs This AD supersedes AD 2002-13-04, Amendment 39-12792 (67 FR 43230, June 27, 2002). (c) Applicability This AD applies to TCM and R-RM C-125, C-145, O-300, IO-360, TSIO-360, and LTSIO-520-AE series reciprocating engines with Champion Aerospace (formerly Unison Industries) Slick Magnetos, models 6314, 6324, and 6364, with magneto serial numbers (S/Ns) of 99110001 through 99129999, inclusive. (d) Unsafe Condition This AD was prompted by an error in the previous AD applicability in the range of magneto S/Ns affected, and by the need to include certain engines made by R-RM, under license of TCM. We are issuing this AD to prevent engine failure and loss of control of the airplane due to migration of the magneto impulse coupling stop pin out of the magneto frame and into the gear train of the engine. (e) Compliance Comply with this AD within 10 flight hours after the effective date of this AD, unless already done. (f) Replacement of Magneto Replace any magneto that has an S/N of 99110001 through 99129999, inclusive, with a magneto that does not have a serial number in that range. If a magneto is not in this S/N range, no further action is required by this AD. (g) Inspections Inspect each removed magneto to verify that the impulse coupling stop pin is present. If the pin is missing, do the following: (1) For C-125, C-145, O-300, IO-360, and TSIO-360 series engines, do the following: (i) Remove magnetos, alternator or generator, and starter adapter from the accessory case. (ii) Remove the accessory case from the crankcase and oil sump. (iii) Visually inspect the entire engine gear train for damaged or broken gears and gear teeth. (iv) Inspect visible portions of the engine crankcase and accessory case for damage due to the stop pin becoming lodged between the engine gear train and the crankcase or accessory case. [[Page 78810]] (v) If the accessory case is damaged, repair or replace the accessory case. (vi) If the engine crankcase is damaged, disassemble the engine, and repair or replace the crankcase. (vii) Inspect the oil pump drive gear teeth and innercam gear teeth for damage. Replace any engine drive train component that has been damaged. (viii) Replace any damaged gear, and magnaflux the mating gears using the applicable engine overhaul manual. (2) For LTSIO-520-AE series engines, do the following: (i) Remove the starter adapter, fuel pump, vacuum pumps, accessory drive pads, and both magnetos. (ii) Visually inspect the entire engine gear train for damaged or broken gears and gear teeth. (iii) If any damage has occurred, remove the engine from the airplane, disassemble the engine, and inspect it for damage. If any damage is found, repair as necessary. (iv) Replace any damaged gear, and magnaflux the mating gears using the applicable engine overhaul manual. (v) Inspect the interior portions of the engine crankcase for damage due to the stop pin becoming lodged between the gear train and the crankcase. If the crankcase is damaged, repair or replace the crankcase. (h) Installation Prohibition After the effective date of this AD, do not install any Champion Aerospace (formerly Unison Industries) Slick magnetos, model 6314, 6324, or 6364 that have an S/N of 99110001 through 99129999, inclusive, on any engine. (i) Alternative Methods of Compliance The Manager, Atlanta Aircraft Certification Office, FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. (j) Related Information (1) A cross-reference for part numbers (P/Ns) for Champion Aerospace (formerly Unison Industries) Slick magneto model 6314 (TCM P/N 653271), model 6324 (TCM P/N 653292), and model 6364 (TCM P/N 649696) can be found in TCM Mandatory Service Bulletin MSB00-6D, dated November 19, 2010. (2) For more information about this AD, contact Juanita Craft, Aerospace Engineer, Propulsion, Atlanta Aircraft Certification Office, FAA, Small Airplane Directorate; 1701 Columbia Avenue, College Park, Georgia 30337; phone: (404) 474-5584; fax: (404) 474- 5606; email: juanita.craft@faa.gov. (k) Material Incorporated by Reference None.