AD 89-16-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 727-100C Series | BOEING Models 727-100C and 727C (cargo) Series Airplanes |
| aircraft | The Boeing Company | 727C Series | BOEING Models 727-100C and 727C (cargo) Series Airplanes |
Unsafe Condition
Cracks in the main cargo door latch support fittings could cause in-flight loss of the main cargo door.
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Required Actions
Conduct a close visual or eddy current inspection of the eight main cargo door latch support fittings per Boeing Alert Service Bulletin 727-53A0177, Rev 1. If cracks are found, replace the fitting with 7075-T73 material as specified. Repeat inspections every 3,000 flight cycles.
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Compliance Time
Prior to the accumulation of 25,000 flight cycles or within the next 3,000 flight cycles after the effective date (August 31, 1989), whichever occurs later.
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Affected Aircraft
Boeing Models 727-100C and 727C (cargo) series airplanes listed in Boeing Alert Service Bulletin 727-53A0177, Rev 1.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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