AD 87-06-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 707-300 Series | Airworthiness Directives; BOEING Model 707-300 Series Airplanes |
| aircraft | The Boeing Company | 707-300B Series | Airworthiness Directives; BOEING Model 707-300 Series Airplanes |
| aircraft | The Boeing Company | 707-300C Series | Airworthiness Directives; BOEING Model 707-300 Series Airplanes |
Unsafe Condition
Loss of engine cowl due to failure of the nose cowl extension attach bolt, bolt spacer, aft flange of the nose cowl extension, or engine case.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect and rework as required each engine nose cowl extension attach bolt, bolt spacer, aft flange of the nose cowl extension, and engine case per Tracor Service Bulletin Q707-71-016, Rev 1 or later FAA-approved revision. Alternate means of compliance may be used if approved by the Manager, Los Angeles Aircraft Certification Office. Special flight permits may be issued under FAR 21.197/199 to operate to a base for AD compliance.
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Compliance Time
Within the next 50 hours time in service or within 30 days, whichever occurs earlier after the effective date of this AD.
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Affected Aircraft
Boeing Model 707-300 Series, 707-300B Series, 707-300C Series airplanes modified with STC SA2699NM.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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