Data / Federal rules / 2025-02643
Airworthiness Directives; The Boeing Company Airplanes
The Federal Aviation Administration published this final rule in the Federal Register on February 14, 2025. It took effect on March 21, 2025.
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What the agency says
The FAA is adopting a new airworthiness directive (AD) for certain The Boeing Company Model 747-400, 747-400F, 747-8F, and 747-8 series airplanes. This AD was prompted by a report that, during potable water servicing, there were multiple engine indicating and crew alerting system messages. The cause was the separation of a fitting and steel water supply tube above an electronics equipment cooling air filter, behind the forward cargo compartment left sidewall. This AD requires, depending on configuration, installing at certain locations: conduits on exposed potable water supply lines, envelope assemblies over all exposed potable water line fittings and exposed potable water supply lines, a slitted spray shield, a two-piece deflector shield around the equipment cooling system (ECS) air inlet, and/or a shroud on exposed potable water supply lines. The FAA is issuing this AD to address the unsafe condition on these products.
Key facts
- Document number
- 2025-02643
- Type
- Final rule
- Action
- Final rule
- Agency
- Transportation Department; Federal Aviation Administration
- Published
- February 14, 2025
- Takes effect
- March 21, 2025
- Dates
- This AD is effective March 21, 2025.
- Docket
- Docket No. FAA-2024-2408; Project Identifier AD-2024-00362-T; Amendment 39-22958; AD 2025-03-10
- Regulation ID (RIN)
- 2120-AA64
- Code of Federal Regulations
- 14 CFR 39
- Topics
- Air transportation; Aircraft; Aviation safety; Incorporation by reference; Safety
- Pages
- 3
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Everything from the Federal Aviation Administration · Rules on air transportation · Rules on aircraft · Rules on aviation safety · Published in February 2025
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