AD 2009-18-10
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | 707 | Airworthiness Directives; Boeing Model 707 Airplanes, and Model 720 and 720B Series Airplanes |
Unsafe Condition
Cracks found in the wing to body terminal fittings during routine inspections, which could cause loss of support for the wing and adversely affect the structural integrity of the airplane.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Perform detailed inspections and applicable related investigative and corrective actions as specified in Boeing 707 Alert Service Bulletin A3524, Revision 1, dated September 18, 2008. Repeat detailed inspections at intervals not to exceed 24 months. Conduct repetitive ultrasonic inspections to detect stress corrosion cracks within the outboard flange of the left and right body terminal fittings at STA 820, and perform related investigative and corrective actions if necessary.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 24 months after October 2, 2008, for the initial detailed inspections. Repeat inspections thereafter at intervals not to exceed 24 months.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Boeing Model 707-100 long body, -200, -100B long body, and -100B short body series airplanes; Model 707-300, -300B, -300C, and -400 series airplanes; and Model 720 and 720B series airplanes, certificated in any category, as identified in Boeing 707 Alert Service Bulletin A3524, Revision 1, dated September 18, 2008.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.