AD 2004-05-14
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | 707 and 720 | Airworthiness Directives; Boeing Model 707 and 720 Series Airplanes |
Unsafe Condition
Separation of the engine from the airplane due to stress corrosion cracking and consequent fracturing of the bolts forward of the wing front spar upper chord on the overwing support fittings of the inboard and outboard nacelle struts.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect the bolt forward of the wing front spar upper chord on the overwing support fittings of the inboard and outboard nacelle struts to verify that BACB30US type bolts are installed. Replace any other type of bolt with a new BACB30US type bolt.
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Compliance Time
Before further flight.
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Affected Aircraft
All Boeing Model 707 and 720 series airplanes.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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