AD Amdt-39-11430
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | 737-100 | Airworthiness Directives; Boeing Model 737-100, -200, -300, -400, and -500 Series Airplanes; and Model 727-100 and -200 Series Airplanes |
Unsafe Condition
Missing breather plugs in fuel tank boost pumps could lead to ignition of fuel vapor in the fuel tank boost pump, potentially resulting in a fuel tank explosion in the event of a boost pump internal failure.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect each fuel tank boost pump to determine the presence and condition of the breather plug. Install a new breather plug if missing or replace the boost pump with a new or serviceable pump if necessary.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 6 months for center fuel tanks on Model 737 series airplanes and auxiliary fuel tanks on Model 737 and 727 series airplanes; within 12 months for main fuel tanks on Model 737 series airplanes and center and main fuel tanks on Model 727 series airplanes.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Boeing Model 737-100, -200, -300, -400, and -500 series airplanes; and Model 727-100 and -200 series airplanes, specifically those equipped with Argo-Tech/TRW fuel tank boost pumps.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.