Data / Federal rules / 2024-27659
Airworthiness Directives; Pratt & Whitney Canada Corp. Engines
The Federal Aviation Administration published this proposed rule in the Federal Register on November 26, 2024. Comments closed on January 10, 2025.
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What the agency says
The FAA proposes to adopt a new airworthiness directive (AD) for certain Pratt & Whitney Canada Corp. (P&WC) Model PW535E and PW535E1 engines. This proposed AD was prompted by a manufacturer design review that indicated certain flange bolts securing the gas generator case and turbine support case are susceptible to cracking at their current low-cycle fatigue (LCF) life. This proposed AD would require repetitive borescope inspections (BSI) of the gas generator case to turbine support case retaining bolts for evidence of bolt cracks, bolt fracture, missing bolts, or loose bolts and replacement, if necessary, as specified in a Transport Canada AD, which is incorporated by reference. The FAA is proposing this AD to address the unsafe condition on these products.
Key facts
- Document number
- 2024-27659
- Type
- Proposed rule
- Action
- Notice of proposed rulemaking (NPRM)
- Agency
- Transportation Department; Federal Aviation Administration
- Published
- November 26, 2024
- Comments due
- January 10, 2025
- Dates
- The FAA must receive comments on this NPRM by January 10, 2025.
- Docket
- Docket No. FAA-2024-2539; Project Identifier MCAI-2023-00971-E
- Regulation ID (RIN)
- 2120-AA64
- Code of Federal Regulations
- 14 CFR 39
- Topics
- Air transportation; Aircraft; Aviation safety; Incorporation by reference; Safety
- Pages
- 4
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Everything from the Federal Aviation Administration · Rules on air transportation · Rules on aircraft · Rules on aviation safety · Published in November 2024
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