FAA orders · airworthiness directive · current

2021-09-10: Turbine Engine Compressor Section

FAA order 2021-09-10 is an airworthiness directive in force since May 27, 2021. The FAA's subject line: Turbine Engine Compressor Section. It names the Pratt & Whitney JT9D-3A, Pratt & Whitney JT9D-59A, Pratt & Whitney JT9D-7, Pratt & Whitney JT9D-7R4D, Pratt & Whitney JT9D-7R4E, Pratt & Whitney JT9D series engines: about 24 aircraft on the U.S. register today across them, though an order usually covers particular versions or serial numbers rather than every one. System: engine.

What it applies to as the FAA lists it

Kind of product: Engine
Makes: Pratt & Whitney
Models: JT9D-20, JT9D-20J, JT9D-3A, JT9D-59A, JT9D-7, JT9D-70A, JT9D-7A, JT9D-7AH, JT9D-7F, JT9D-7H, JT9D-7J, JT9D-7Q, JT9D-7Q3, JT9D-7R4D, JT9D-7R4D1, JT9D-7R4E, JT9D-7R4E1, JT9D-7R4E4, JT9D-7R4G2, JT9D-7R4H1
Engine series: Pratt & Whitney JT9D-3A 4 aircraft
Pratt & Whitney JT9D-59A 1 aircraft
Pratt & Whitney JT9D-7 1 aircraft
Pratt & Whitney JT9D-7R4D 4 aircraft
Pratt & Whitney JT9D-7R4E 1 aircraft
Pratt & Whitney JT9D series 13 aircraft

Dates and paperwork

In force since: May 27, 2021
Published: April 22, 2021 (signed April 16, 2021)
Docket: FAA-2020-1116
Replaces: 2012-04-15
Status: Current
The FAA's document: Read the order on the FAA's site

The FAA's summary their words, unchanged

The FAA is superseding Airworthiness Directive (AD) 2012-04-15 for all Pratt & Whitney (PW) JT9D-3A, JT9D-7, JT9D-7A, JT9D-7AH, JT9D- 7F, JT9D-7H, JT9D-7J, JT9D-7Q, JT9D-7Q3, JT9D-7R4D, JT9D-7R4D1, JT9D- 7R4E, JT9D-7R4E1, JT9D-7R4E4, JT9D-7R4G2, JT9D-7R4H1, JT9D-20, JT9D- 20J, JT9D-59A, and JT9D-70A (JT9D) model turbofan engines. AD 2012-04- 15 required revisions to the Airworthiness Limitations Section (ALS) of the manufacturer's Instructions for Continued Airworthiness (ICA) to include required enhanced inspection of selected critical life-limited parts at each piece-part opportunity. AD 2012-04-15 also required additional revisions to the ALS of the manufacturer's ICA for JT9D model turbofan engines. This AD requires revising the required inspections of selected critical life-limited parts specified in the ALS of the manufacturer's ICA and, for air carriers, to the existing continuous airworthiness air carrier maintenance program (CAMP). The FAA is issuing this AD to address the unsafe condition on these products.

The order itself the regulatory text, as published

Show the full text (3,585 characters)

The Amendment \n\n\n\tAccordingly, under the authority delegated to me by the Administrator, the FAA amends 14 CFR part 39 as follows: \n\nPART 39--AIRWORTHINESS DIRECTIVES \n\n0 1. The authority citation for part 39 continues to read as follows: \n\n\n\tAuthority: 49 U.S.C. 106(g), 40113, 44701. \n\n\n\nSec.  39.13  (Amended) \n\n0 2. The FAA amends Sec.  39.13 by: 0 a. Removing Airworthiness Directive 2012-04-15, Amendment 39-16971 (77 FR 15939, March 19, 2012); and 0 b. Adding the following new airworthiness directive: \n\n2021-09-10 Pratt & Whitney: Amendment 39-21524; Docket No. FAA-2020- 1116; Project Identifier AD-2020-00784-E. \n\n(a) Effective Date \n\n\n\tThis airworthiness directive (AD) is effective May 27, 2021. \n\n(b) Affected ADs \n\n\n\tThis AD replaces AD 2012-04-15, Amendment 39-16971 (77 FR 15939, March 19, 2012). \n\n(c) Applicability \n\n\n\tThis AD applies to all Pratt & Whitney (PW) JT9D-3A, JT9D-7, JT9D-7A, JT9D-7AH, JT9D-7F, JT9D-7H, JT9D-7J, JT9D-7Q, JT9D-7Q3, JT9D-7R4D, JT9D-7R4D1, JT9D-7R4E, JT9D-7R4E1, JT9D-7R4E4, JT9D- 7R4G2, JT9D-7R4H1, JT9D-20, JT9D-20J, JT9D-59A, and JT9D-70A (JT9D) model turbofan engines. \n\n(d) Subject \n\n\n\tJoint Aircraft System Component (JASC) Code 7230, Turbine Engine Compressor Section. \n\n(e) Unsafe Condition \n\n\n\tThis AD was prompted by the need to require enhanced inspection of selected critical life-limited parts of PW JT9D model turbofan engines. The FAA is issuing this AD to prevent the failure of critical life-limited rotating engine parts. The unsafe condition, if not addressed, could result in uncontained part release, damage to the engine, and damage to the airplane. \n\n(f) Compliance \n\n\n\tComply with this AD within the compliance times specified, unless already done. \n\n(g) Required Actions \n\n\n\tWithin 30 days after the effective date of this AD, add Figure 1 to paragraph (g) of this AD to the Airworthiness Limitations Section (ALS) of the manufacturer's Instructions for Continued Airworthiness (ICA) and, for air carrier operations, to the existing continuous airworthiness air carrier maintenance program. BILLING CODE 4910-13-P \n\n((Page 21183)) \n\n(GRAPHIC) (TIFF OMITTED) TR22AP21.000 \n\n\n\n((Page 21184)) \n\n\n\n(GRAPHIC) (TIFF OMITTED) TR22AP21.001 \n\nBILLING CODE 4910-13-C \n\n(h) Alternative Methods of Compliance (AMOCs) \n\n\n\t(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 certification office, send it to the attention of the person identified in Related Information. You may email your request to: ANE-AD-AMOC@faa.gov. \n\t(2) Before using any approved AMOC, notify your appropriate principal inspector, or lacking a principal inspector, the manager of the local flight standards districtoffice/certificate holding district office. \n\n((Page 21185)) \n\n(i) Related Information \n\n\n\tFor more information about this AD, contact Nicholas Paine, Aviation Safety Engineer, ECO Branch, FAA, 1200 District Avenue, Burlington, MA 01803; phone: (781) 238-7742; fax: (781) 238-7199; email: nicholas.j.paine@faa.gov. \n\n(j) Material Incorporated by Reference \n\n\n\tNone. \n\n\n\tIssued on April 16, 2021. Lance T. Gant, Director, Compliance & Airworthiness Division, Aircraft Certification Service. (FR Doc. 2021-08327 Filed 4-21-21; 8:45 am) BILLING CODE 4910-13-P

Source: FAA Dynamic Regulatory System, airworthiness directives. The FAA's document is the authority; the register counts are this site's, from the FAA register of October 5, 2026. Connections as data: /graph/directive/2021-09-10.json · aircraft systems.