AD 88-09-05 R1
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Bombardier Inc. | DHC-8-101 | Airworthiness Directives; DeHavilland Model DHC-8 Series Airplanes |
| aircraft | Bombardier Inc. | DHC-8-102 | Airworthiness Directives; DeHavilland Model DHC-8 Series Airplanes |
| aircraft | Bombardier Inc. | DHC-8-103 | Airworthiness Directives; DeHavilland Model DHC-8 Series Airplanes |
| aircraft | Bombardier Inc. | DHC-8-106 | Airworthiness Directives; DeHavilland Model DHC-8 Series Airplanes |
| aircraft | Bombardier Inc. | DHC-8-201 | Airworthiness Directives; DeHavilland Model DHC-8 Series Airplanes |
| aircraft | Bombardier Inc. | DHC-8-202 | Airworthiness Directives; DeHavilland Model DHC-8 Series Airplanes |
| aircraft | Bombardier Inc. | DHC-8-301 | Airworthiness Directives; DeHavilland Model DHC-8 Series Airplanes |
| aircraft | Bombardier Inc. | DHC-8-311 | Airworthiness Directives; DeHavilland Model DHC-8 Series Airplanes |
| aircraft | Bombardier Inc. | DHC-8-315 | Airworthiness Directives; DeHavilland Model DHC-8 Series Airplanes |
Unsafe Condition
Inadvertent opening of the airstair door and consequent depressurization of the airplane.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Replace the labels marking the location and means of opening the lavatory in accordance with de Havilland Service Bulletin 8-11-14, Revision A, B, or C. An alternative method of compliance may be approved by the FAA if submitted through an appropriate FAA Principal Maintenance Inspector.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 60 days after June 10, 1988
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Affected Aircraft
DeHavilland Model DHC-8 series airplanes, serial numbers 3 through 79 inclusive, on which Modification 8/0757 has not been installed.
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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