AD 93-09-13
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Bombardier Inc. | DHC-8-101 | Airworthiness Directives; De Havilland, Inc. Model DHC-8-100 and DHC-8-300 Series Airplanes |
| aircraft | Bombardier Inc. | DHC-8-102 | Airworthiness Directives; De Havilland, Inc. Model DHC-8-100 and DHC-8-300 Series Airplanes |
| aircraft | Bombardier Inc. | DHC-8-103 | Airworthiness Directives; De Havilland, Inc. Model DHC-8-100 and DHC-8-300 Series Airplanes |
| aircraft | Bombardier Inc. | DHC-8-106 | Airworthiness Directives; De Havilland, Inc. Model DHC-8-100 and DHC-8-300 Series Airplanes |
| aircraft | Bombardier Inc. | DHC-8-301 | Airworthiness Directives; De Havilland, Inc. Model DHC-8-100 and DHC-8-300 Series Airplanes |
| aircraft | Bombardier Inc. | DHC-8-311 | Airworthiness Directives; De Havilland, Inc. Model DHC-8-100 and DHC-8-300 Series Airplanes |
| aircraft | Bombardier Inc. | DHC-8-315 | Airworthiness Directives; De Havilland, Inc. Model DHC-8-100 and DHC-8-300 Series Airplanes |
Unsafe Condition
Loss of conductivity at bus bar connections, which could lead to overheat damage to wiring or connectors.
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Required Actions
Replace aluminum washers with steel washers at the bus bar connections in accordance with de Havilland Alert Service Bulletin S.B. A8-24-44. An alternative method of compliance or adjustment of compliance time may be used if approved by the Manager, New York Aircraft Certification Office.
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Compliance Time
Within 60 days after the effective date of this AD (June 17, 1993).
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Affected Aircraft
De Havilland, Inc. Model DHC-8-100 and DHC-8-300 series airplanes on which Modification 8/1970 has not been accomplished.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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