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Data / Federal rules / 2024-05238

Airworthiness Directives; Pratt & Whitney Canada Corp. Engines

The Federal Aviation Administration published this final rule in the Federal Register on March 13, 2024. It took effect on March 28, 2024.

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What the agency says

The FAA is adopting a new airworthiness directive (AD) for all Pratt & Whitney Canada Corp. (P&WC) Model PT6A-64, PT6A-66, PT6A-66A, PT6A-66B, PT6A-66D, PT6A-67, PT6A-67A, PT6A-67AF, PT6A-67AG, PT6A-67B, PT6A-67D, PT6A-67F, PT6A-67P, PT6A-67R, PT6A-67RM, PT6A-67T, PT6A-68, PT6A-68D, PT6E-67XP, and PT6E-66XT engines. The FAA previously sent this AD as an emergency AD to all known U.S. owners and operators of these engines. This AD was prompted by reports of second-stage power turbine (PT2) blade failures. This AD requires removal of affected PT2 blades prior to the next flight and prohibits installation of affected PT2 blades, as specified in a Transport Canada Emergency AD, which is incorporated by reference. The FAA is issuing this AD to address the unsafe condition on these products.

Key facts

Document number
2024-05238
Type
Final rule
Action
Final rule; request for comments
Agency
Transportation Department; Federal Aviation Administration
Published
March 13, 2024
Takes effect
March 28, 2024
Dates
This AD is effective March 28, 2024. Emergency AD 2024-04-51, issued on February 16, 2024, which contained the requirements of this amendment, was effective with actual notice.
Docket
Docket No. FAA-2024-0458; Project Identifier MCAI-2024-00116-E; Amendment 39-22694; AD 2024-04-51
Regulation ID (RIN)
2120-AA64
Code of Federal Regulations
14 CFR 39
Topics
Air transportation; Aircraft; Aviation safety; Incorporation by reference; Safety
Pages
4

The document on federalregister.gov PDF

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Everything from the Federal Aviation Administration · Rules on air transportation · Rules on aircraft · Rules on aviation safety · Published in March 2024

Read from the Federal Register API, last updated 2026-10-23. The document on federalregister.gov is the official record; dates and dockets can change through later corrections. Free to reuse with credit to SpecStream under CC BY 4.0.