AD 2002-04-06
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 727-100 Series | Airworthiness Directives; Boeing Model 727 Series Airplanes |
| aircraft | The Boeing Company | 727-100C Series | Airworthiness Directives; Boeing Model 727 Series Airplanes |
| aircraft | The Boeing Company | 727-200 Series | Airworthiness Directives; Boeing Model 727 Series Airplanes |
| aircraft | The Boeing Company | 727-200F Series | Airworthiness Directives; Boeing Model 727 Series Airplanes |
| aircraft | The Boeing Company | 727 Series | Airworthiness Directives; Boeing Model 727 Series Airplanes |
| aircraft | The Boeing Company | 727C Series | Airworthiness Directives; Boeing Model 727 Series Airplanes |
Unsafe Condition
Cracking of the upper chord of the rear spar of the wing could result in fuel leaking through the cracks, reduced structural integrity of the wing, and separation of the wing from the airplane.
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Required Actions
Conduct detailed visual and high frequency eddy current inspections for cracking of the upper chord of the rear spar of the wing per Boeing Service Bulletin 727-57-0184. Repeat inspections every 4,500 flight cycles. If cracking is found, repair using an approved method by the Manager, Seattle Aircraft Certification Office or a Boeing DER. If damage/deterioration but no cracking is found, remove finish, blend smooth, and reapply finish as specified.
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Compliance Time
Before further flight if cracking is found; initial inspections must be done within 500 flight cycles after the effective date or prior to 20,000 total flight cycles, whichever is later.
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Affected Aircraft
All Boeing Model 727 series airplanes, including 727-100, 727-100C, 727-200, 727-200F, 727 Series, and 727C Series, certificated in any category.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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