AD 2018-19-21
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | Company | Airworthiness Directives; The Boeing Company Airplanes |
Unsafe Condition
detect and correct potential ignition sources inside fuel tanks caused by latent failures, alterations, repairs, or maintenance actions, which, in combination with flammable fuel vapors, could result in fuel tank explosions and consequent loss of the airplane.
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Required Actions
revising the maintenance or inspection program to include new airworthiness limitations, revising the maintenance or inspection program, as applicable, to incorporate the instructions contained in Boeing 707/720 Airworthiness Limitations (AWLs), D6-7552-AWL, dated October 2016
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Compliance Time
Within 60 days after the effective date of this AD
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Affected Aircraft
all The Boeing Company Model 707 airplanes, and Model 720 and 720B series airplanes
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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