AD 91-24-11 R1
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
Failure of the body station (BS) 870 terminal fitting and depressurization of the airplane due to cracks and web separations.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Conduct visual, eddy current, and ultrasonic inspections of the BS 870 terminal fitting for cracks and web separations per Boeing Service Bulletin 727-53-0194. Rework uncracked fastener holes and install oversized fasteners during the initial inspection. Repair any found cracks or separations prior to further flight per the service bulletin. Repeat inspections at intervals not exceeding 6,000 flight cycles or 3 years (or 3,000 flight cycles/18 months if web separations are repaired with external doublers).
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Prior to the accumulation of 25,000 total flight cycles or within the next 3,000 flight cycles after the effective date of this AD, whichever occurs later.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Boeing Model 727 series airplanes, line numbers 001 through 875, certificated in any category.
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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