2005-24-09: Propeller hubs

2005-24-09 McCauley Propeller Systems: Amendment 39-14389. Docket No. FAA-2005-22731; Directorate Identifier 2005-NE-36-AD. Effective Date (a) This airworthiness directive (AD) becomes effective December 15, 2005. Affected ADs (b) None. Applicability (c) This AD applies to McCauley Propeller Systems propeller assemblies, models 2D34C53/74E-X; D2A34C58/90AT-X; 3AF32C87/82NC-X; D3AF32C87/82NC-X; D3A32C88/82NC-X; D3A32C90/82NC-X; and 3AF34C92/ 90LF-X, with the propeller hubs listed by serial number in the following Table 1: Table 1.--Affected Propeller Hubs Hub model Hub serial number 030725 030726 030727 030728 030729 030730 030748 030749 030750 030751 030752 030753 030754 030755 030756 030757 030758 030759 030760 050403 050407 050408 050410 050475 C58, C34, C49, C78, C98 050477 C53 050389 042206 042207 C79, C90 042208 042201 C77, C88 042202 042239 042524 042527 042528 042529 050071 C87 blank index, C72, C93 050073 C92, C74, C86 050866 C87 D index 050934 (d) Because a propeller hub can be interchanged and re- identified as a different model with the installation of different studs or adapters, any of the affected hubs could have been re- identified as a different model. Each propeller hub model listed in Table 1 of this AD is the original hub configuration when shipped from McCauley. (e) The propeller hubs listed in Table 1 of this AD are installed on, but not limited to, the airplanes listed in the following Table 2: Table 2.--Airplanes Installed On, But Not Limited To Airplane Model Beagle ....................... B206. Bellanca .................... 14 19 3A, 17 30, 17 30A. 180 series. 182E thru R. 185, A, B, C, D, E, F. A185, E, F. A188, A188A, A188B. 206 series. P206, A, B, C, D, E. U206A, B, C, D, E, F, G. TP206A, B, C, D, E. TU206A, B, C, D, E, F. U206, A, B, C, D, E, F, G. 207, A, T207. 210 5, 210 5A, 210, A, B, C, D, E, F, G, H, I, J, K, L. T210F, G, H, J, K, L. 310I, 310P, Q, R, T310P, Q, R. 320, A, B, C, D, E, F. 335. 340, A. 401, A, B. 402, A, B, C. 411, A. 414, A. Cessna ...................... 421, A, B. Fuji ............................ FA 200 180. Globe ......................... GC 1B. Hindustan .................. HA 31. Meyers ...................... 200B, C, D. Mooney ..................... M20C, D, G. Navion ....................... A, B, C, D, E, F, G, H. Procaer ...................... F15/C. Transavia .................. PL12. Windecker ................. AC 7 Unsafe Condition (f) This AD results from a report by the manufacturer that they manufactured and released 40 propeller hubs with improperly machined socket retention threads. We are issuing this AD to prevent cracked propeller hubs, which could cause failure of the propeller hub, blade separation, and loss of control of the airplane. Compliance (g) You are responsible for having the affected propeller hubs removed from service within 10 flight hours or 10 days after the effective date of this AD, whichever occurs first, unless the actions have already been done. Propeller Hub Removal (h) Remove from service propeller assemblies with affected propeller hubs, listed in Table 1 of this AD. (i) Send propeller assemblies with affected propeller hubs listed in Table 1 of this AD to a McCauley Service Center for disassembly, inspection, and propeller hub replacement with a serviceable propeller hub. (j) Send uninstalled propeller hubs listed in Table 1 of this AD to a McCauley Service Center for replacement with a serviceable propeller hub. Replacement Propeller Hub Pre-Installation Requirements (k) For retention nuts that were removed from an affected propeller hub, visually inspect the retention nut threads with a 10- power magnifier before assembly into a replacement propeller hub. Reject the nut for any signs of galling, heavy localized loading, thread deformation, or chipped threads that may have been caused by thread interference in the propeller hub. Reporting Requirements (l) Report within 10 calendar days of finding affected propeller hubs to: (1) The FAA, Wichita Aircraft Certification Office, 1801 Airport Road, Room 100, Wichita, KS 67209, Attention: Jeff Janusz, telephone (316) 946-4148; e-mail: [email protected]; and (2) McCauley Propeller Systems, P.O. Box 7704, Wichita, KS 97277-7704. (3) Reporting requirements have been approved by the Office of Management (OMB) and assigned OMB control number 2120-0056. McCauley Credit Program (m) McCauley Alert Service Bulletin No. ASB251A, dated September 28, 2005 contains information on a credit program for affected hubs.Alternative Methods of Compliance (n) The Manager, Wichita Aircraft Certification Office, has the authority to approve alternative methods of compliance for this AD if requested using the procedures found in 14 CFR 39.19. Special Flight Permits (o) Under 39.23, we are limiting the special flight permits for this AD by the following conditions: (1) The propeller must have an oil-filled propeller hub and have no history of hub oil leakage. (2) You must visually examine the propeller hub, and it must have no evidence of existing cracks. (3) You are allowed a single-occupant (pilot only), non-revenue flight to a base of maintenance or FAA-approved propeller repair facility only. (4) Your total flight time must not exceed 10 hours. Related Information (p) McCauley Propeller Systems Alert Service Bulletin No. ASB251A, dated September 28, 2005, pertains to the subject of this AD.