AD 88-12-06
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 767-200 Series | Airworthiness Directives; BOEING Model 767 Series Airplanes |
| aircraft | The Boeing Company | 767-300 Series | Airworthiness Directives; BOEING Model 767 Series Airplanes |
| aircraft | The Boeing Company | 767-300F Series | Airworthiness Directives; BOEING Model 767 Series Airplanes |
Unsafe Condition
Structural failure of the vertical fin in the event of a failure of the aft pressure bulkhead.
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Required Actions
Install seal plates over the electrical wiring and hydraulic tubing cutouts on the fin-to-body skin in accordance with Boeing Service Bulletin 767-53-0025. An alternate means of compliance or adjustment of the compliance time may be used when approved by the FAA. Special flight permits may be issued under FAR 21.197 and 21.199 to operate airplanes to a base for compliance.
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Compliance Time
within 12 months after the effective date of this AD, unless previously accomplished
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Affected Aircraft
Boeing Model 767 series airplanes listed in Boeing Service Bulletin 767-53-0025, dated June 4, 1987, 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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