AD 2000-03-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | 747-100 and -200 | Airworthiness Directives; Boeing Model 747-100 and −200 Series Airplanes |
Unsafe Condition
Fatigue cracking of the upper and lower chords of the wing front spar could result in reduced structural capability and possible fuel leakage onto an engine, leading to a resultant fire.
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Required Actions
Inspect the upper and lower chords of the wing front spar for cracks. Take corrective action if cracks are detected. For airplanes with no detected cracking, an optional terminating action is provided in lieu of repetitive inspections.
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Compliance Time
Before further flight
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Affected Aircraft
Boeing Model 747-100 and -200 series airplanes.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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