AD 92-10-11
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 757-200 Series | Airworthiness Directives; BOEING Model 757 Series Airplanes |
| aircraft | The Boeing Company | 757-200CB Series | Airworthiness Directives; BOEING Model 757 Series Airplanes |
| aircraft | The Boeing Company | 757-200PF Series | Airworthiness Directives; BOEING Model 757 Series Airplanes |
| aircraft | The Boeing Company | 757-300 Series | Airworthiness Directives; BOEING Model 757 Series Airplanes |
Unsafe Condition
Damage to the floor beam at body station 1640, hydraulic system components, and flight control functions due to a sudden decrease in air pressure aft of the bulkhead lining.
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Required Actions
Modify the soft bulkhead support structure at BS 1640 and replace the bulkhead lining per Boeing Alert Service Bulletin 757-25A0112 dated July 18, 1991. An alternative method of compliance or adjustment of compliance time may be approved by the Manager, Seattle Aircraft Certification Office. Special flight permits under FAR 21.197 and 21.199 may be issued to operate airplanes to a base for compliance.
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Compliance Time
within the next 24 months after the effective date of this AD, unless previously accomplished
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Affected Aircraft
BOEING Model 757-200 Series, 757-200CB Series, 757-200PF Series, 757-300 Series airplanes listed in Boeing Alert Service Bulletin 757-25A0112 dated July 18, 1991
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
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