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ADs updated daily at www.Tdata.com
PRATT & WHITNEY CANADA CORP.:
Amendment 39-21151; Docket No. FAA2019-0395; Project Identifier 2019-NE-11-AD.
(a) EFFECTIVE DATE This AD is effective August 6, 2020. (b) AFFECTED ADS None. (c) APPLICABILITY This AD applies to Pratt & Whitney Canada Corp. (P&WC) PW150A model turboprop engines with a high-pressure (HP) centrifugal impeller, part number (P/N) 3049127-01, installed. (d) SUBJECT Joint Aircraft System Component (JASC) 7230, Turbine Engine Compressor Section. (e) UNSAFE CONDITION This AD was prompted by a determination by the manufacturer that cer- tain HP centrifugal impellers installed on P&WC PW150A model turboprop engines may exhibit a material microstructure anomaly that has a potential to adversely affect the low cycle fatigue characteristics of the part. The FAA is issuing this AD to prevent failure of a certain HP centrifugal impeller. The unsafe condition, if not addressed, could result in uncontained release of the HP centrifugal impeller, damage to the engine, and damage to the airplane. (f) COMPLIANCE Comply with this AD within the compliance times specified, unless al- ready done. (g) REQUIRED ACTIONS Remove HP centrifugal impeller, P/N 3049127-01, with any serial number (S/N) listed in Table 2 of P&WC Service Bulletin (SB) No. PW150-72- 35331, Revision No. 1, dated May 3, 2016, prior to accumulating 8,000 flight cycles since new or within 150 flight cycles after the effec- tive date of this AD, whichever occurs later, and replace with a part eligible for installation. (h) INSTALLATION PROHIBITION After the effective date of this AD, do not install an HP centrifugal impeller, P/N 3049127-01, with any S/N listed in Table 1 or 2 of P&WC SB No. PW150-72-35331, Revision No. 1, dated May 3, 2016, onto any engine. (i) ALTERNATIVE METHODS OF COMPLIANCE (AMOCS) (1) The Manager, ECO Branch, FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. In accordance with 14 CFR 39.19, send your request to your principal inspector or local Flight Standards District Office, as appropriate. If sending information directly to the manager of the ECO Branch, send it to the attention of the person identified in paragraph (j)(1) of this AD. You may email your request to: ANE-AD-AMOC@faa.gov. (2) Before using any approved AMOC, notify your appropriate principal in- spector, or lacking a principal inspector, the manager of the local flight standards district office/certificate holding district office. (j) RELATED INFORMATION (1) For more information about this AD contact Barbara Caufield, Aerospace Engineer, ECO Branch, FAA, 1200 District Avenue, Burlington, MA, 01803 phone 781-238-7146; fax 781-238-7199; email firstname.lastname@example.org. (2) Refer to Transport Canada Civil Aviation (TCCA) AD CF-2018-12, dated April 27, 2018, for more information. You may examine the TCCA AD in the AD docket on the Internet at https://www.regulations.gov by searching for and locating Docket No. FAA-2019-0395. (k) 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 Corp. (P&WC) Service Bulletin PW150-72-35331, Revision No. 1, dated May 3, 2016. (ii) [Reserved] (3) For P&WC 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; Internet: https:// www.pwc.ca. (4) You may view this service information at FAA, Airworthiness Products Section, Operational Safety Branch, 1200 District Avenue, Burlington, MA, 01803. For information on the availability of this material at the FAA, call 781-238-7759. (5) You may view this service information that is incorporated by reference at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, email: email@example.com, or go to: https://www.archives.gov/federal- register/cfr/ibr-locations.html. Issued on June 17, 2020. Lance T. Gant, Director, Compliance & Airworthi- ness Division, Aircraft Certification Service. FOR FURTHER INFORMATION CONTACT: Barbara Caufield, Aerospace Engineer, ECO Branch, FAA, 1200 District Avenue, Burlington, MA, 01803; phone: 781-238- 7146; fax: 781-238-7199; email: firstname.lastname@example.org
DEPARTMENT OF TRANSPORTATION
Authority for This Rulemaking