AD 91-03-19 R1
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 727-200 Series | Airworthiness Directives; BOEING Model 727-200 and 727-200F Series Airplanes |
| aircraft | The Boeing Company | 727-200F Series | Airworthiness Directives; BOEING Model 727-200 and 727-200F Series Airplanes |
Unsafe Condition
Rapid depressurization of the cabin due to fuselage cracks under the center engine inlet pedestal housing.
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Required Actions
Perform a detailed external visual inspection for fuselage skin cracks from body station BS 1090 to BS 1110 per Boeing Alert Service Bulletin 727-53A0204. Repeat inspections at intervals not exceeding 3,000 flight cycles or 18 months. Repair or modify as specified in the service bulletin if cracks are found.
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Compliance Time
Within 500 flight cycles or 2 months after March 11, 1991 (Group 1), 1,250 flight cycles or 6 months after March 11, 1991 (Group 2), or 2,500 flight cycles or 18 months after March 11, 1991 (Group 3), whichever occurs first. Repeat inspections must be done before further flight if cracks are found.
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Affected Aircraft
Boeing Model 727-200 and 727-200F series airplanes, 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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