AD 2021-19-19
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | Company | Airworthiness Directives; The Boeing Company Airplanes |
Unsafe Condition
The application of sealant on the left wing and right wing leading edge outboard blowout door was missed during the airplane manufacturing process on some Model 737-9 airplanes, which could allow fuel to come into contact with the engine in the presence of a substantial fuel leak from the wing box, leading to a large ground fire.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Doing a fluid seal contact inspection and a detailed inspection for missing sealant on each blowout door and applying sealant if necessary.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Before further flight
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
The Boeing Company Model 737-9 airplanes having line numbers 6834, 6852, 6872, 6899, 6917, 6935, 7096, 7173, 7196, 7201, 7208, 7216, 7246, 7253, 7261, 7268, 7306, 7316, 7338, 7348, 7361, 7384, 7388, 7394, and 7428.
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.