2012-26-08: Propeller shafts

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) 2012-11-14, Amendment 39-17078 (77 FR 39624, July 5, 2012), and adding the following new AD: 2012-26-08 Pratt & Whitney Canada Corp: Amendment 39-17303 ; Docket No. FAA-2012-0416; Directorate Identifier 2012-NE-13-AD. (a) Effective Date This airworthiness directive (AD) is effective February 15, 2013. (b) Affected ADs This AD supersedes AD 2012-11-14 (77 FR 39624, July 5, 2012). (c) Applicability This AD applies to all Pratt & Whitney Canada Corp. (P&WC) PW118, PW118A, PW118B, PW119B, PW119C, PW120, PW120A, PW121, PW121A, PW123, PW123B, PW123C, PW123D, PW123E, PW123AF, PW124B, PW125B, PW126A, PW127, PW127E, PW127F, PW127G, and PW127M turboprop engines, with the serial number (S/N) propeller shafts listed in P&WC Alert Service Bulletin (ASB) No. PW100-72-A21813, Revision 3, dated March 21, 2012, ASB No. PW100-72-A21802, Revision 4, dated March 16, 2012, and ASB No. PW100-72-A21798, Revision 5, dated March 20, 2012. (d) Unsafe Condition This AD was prompted by reports of two propeller shafts found cracked at time of inspection during maintenance. We are issuing this AD to detect propeller shaft cracks, which could cause failure of the shaft, propeller release, and loss of control of the airplane. (e) Compliance Comply with this AD within the compliance times specified, unless already done. (f) Inspecting Propeller Shafts (1) For propeller shafts with an S/N listed in Table 1 and Table 2 of P&WC ASB No. PW100-72-A21813, Revision 3, dated March 21, 2012: (i) For engines not yet initially inspected per AD 2012-11-14 (77 FR 39624, July 5, 2012), before further flight, perform either an initial visual inspection or an initial ultrasonic inspection (UI) for cracks, in accordance with paragraphs 3.C.(1) through 3.C.(1)(a), and 3.C.(2) of P&WC ASB No. PW100-72-A21813, Revision 3, dated March 21, 2012, and Section 9 of P&WC Special Instruction (SI) P&WC No. 22-2012, R2, dated April 4, 2012. (ii) If the visual inspection was performed, repeat the visual inspection within 50 engine flight hours (EFH) after the initial inspection, and thereafter within every 10 EFH, until the propeller shaft is removed from service. (iii) If the UI was performed, repeat the UI at intervals not to exceed 1,000 EFH, until the propeller shaft is removed from service. (2) If a crack is found during any of the inspections required by this AD, remove the propeller shaft from service before the next flight. (g) Mandatory Terminating Action As mandatory terminating action to the repetitive inspections required by this AD: (1) For propeller shafts with an S/N listed in Table 1 of P&WC ASB No. PW100-72-A21802, Revision 4, dated March 16, 2012, remove the propeller shafts from service before further flight. (2) For affected S/N propeller shafts listed in Table 1 of P&WC ASB No. PW100-72-A21798, Revision 5, dated March 20, 2012, remove the propeller shafts from service within 6 months after the effective date of this AD. (3) For affected S/N propeller shafts listed in Table 2 of P&WC ASB No. PW100-72-A21798, Revision 5, dated March 20, 2012, remove the propeller shafts from service within 12 months after the effective date of this AD. (h) Installation Prohibition (1) After the effective date of this AD, do not install any propeller shaft S/Ns listed in Table 1 of P&WC ASB No. PW100-72- A21802, Revision 4, dated March 16, 2012, into any engine. (2) After the effective date of this AD, do not install any propeller shaft S/Ns listed in Table 1 and Table 2 of P&WC ASB No. PW100-72-A21798, Revision 5, dated March 20, 2012, into any engine. [[Page 2333]] (i) Credit for Actions Accomplished in Accordance With Previous Service Information (1) Initial inspections performed before the effective date of this AD using P&WC ASB No. PW100-72-A21813, Revision 3, dated March 21, 2012 or earlier revisions satisfy the initial inspection requirements of paragraph (f) of this AD. However, you must perform the repetitive inspection intervals specified in paragraph (f). (2) Ultrasonic inspections performed before the effective date of this AD per Special Instruction P&WC 22-2012R2, dated April 4, 2012, or earlier revisions satisfy the requirements of paragraph (f) of this AD. (j) Alternative Methods of Compliance (AMOCs) The Manager, Engine Certification Office, may approve AMOCs for this AD. Use the procedures found in 14 CFR 39.19 to make your request. (k) Related Information (1) For more information aboutthis AD, contact James Lawrence, Aerospace Engineer, Engine Certification Office, FAA, Engine & Propeller Directorate, 12 New England Executive Park, Burlington, MA 01803; email: james.lawrence@faa.gov; phone: 781-238-7176; fax: 781- 238-7199. (2) Refer to Transport Canada AD CF-2012-12, dated March 26, 2012, for related information. (l) Material Incorporated by Reference (1) The Director of the Federal Register approved the incorporation by reference (IBR) of the service information listed in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51. (2) You must use this service information as applicable to do the actions required by this AD, unless the AD specifies otherwise. (i) Pratt & Whitney Canada Alert Service Bulletin ASB No. PW100- 72-A21798, Revision 5, dated March 20, 2012. (ii) Reserved. (3) The following service information was approved for IBR on July 20, 2012, (77 FR 39624, July 5, 2012). (i) Pratt & Whitney Canada Alert Service Bulletin No. PW100-72- A21813, Revision 3, dated March 21, 2012. (ii) Pratt & Whitney Canada Alert Service Bulletin No. PW100-72- A21802, Revision 4, dated March 16, 2012. (iii) Pratt & Whitney Canada Special Instruction P&WC 22-2012R2, dated April 4, 2012. (4) For Pratt & Whitney Canada service information identified in this AD, contact Pratt & Whitney Canada Corp., 1000 Marie-Victorin, Longueuil, Quebec, Canada, J4G 1A1; phone: 800-268-8000; fax: 450- 647-2888; Web site: www.pwc.ca. (5) You may view this service information at the FAA, Engine & Propeller Directorate, 12 New England Executive Park, Burlington, MA. For information on the availability of this material at the FAA, call 781-238-7125. (6) You may view this service information at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, call 202-741-6030, or go to: http://www.archives.gov/federal-register/cfr/ibr-locations.html.