AD 90-18-05
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 stabilizer from overpressurization in the event of a rupture of the fuselage under the dorsal fin.
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Required Actions
Install a cover plate and a panel assembly over the lightening and access holes in the vertical stabilizer forward closure rib in accordance with Boeing Alert Service Bulletin 767-55A0007, dated June 22, 1989. An alternate means of compliance or adjustment of the compliance time may be used when approved by the Manager, Seattle Aircraft Certification Office (ACO), FAA, Transport Airplane Directorate.
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Compliance Time
within the next 18 months after the effective date of this AD, unless previously accomplished
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Affected Aircraft
Model 767 series airplanes, line numbers 002 through 299, 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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