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Data / Federal rules / 2024-23115

Airworthiness Directives; Bombardier, Inc., Airplanes

The Federal Aviation Administration published this final rule in the Federal Register on October 8, 2024. It took effect on November 12, 2024.

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What the agency says

The FAA is adopting a new airworthiness directive (AD) for certain Bombardier, Inc., Model BD-700-2A12 airplanes. This AD was prompted by a report indicating that the fan in a transformer rectifier unit (TRU) can become inoperative in a manner that is not detectable by the fan monitoring circuit. This AD requires replacement of the existing TRU Number 2 with a new part number that incorporates a correction to the fan and the monitoring circuit. This AD also prohibits the installation of affected parts. The FAA is issuing this AD to address the unsafe condition on these products.

Key facts

Document number
2024-23115
Type
Final rule
Action
Final rule
Agency
Transportation Department; Federal Aviation Administration
Published
October 8, 2024
Takes effect
November 12, 2024
Dates
This AD is effective November 12, 2024.
Docket
Docket No. FAA-2024-0227; Project Identifier MCAI-2023-00886-T; Amendment 39-22838; AD 2024-18-04
Regulation ID (RIN)
2120-AA64
Code of Federal Regulations
14 CFR 39
Topics
Air transportation; Aircraft; Aviation safety; Incorporation by reference; Safety
Pages
3

The document on federalregister.gov PDF

Other documents from the Federal Aviation Administration

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

Read from the Federal Register API, last updated 2026-10-24. 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.