AD 2000-07-23
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Bombardier | DHC-8-100 | Airworthiness Directives; Bombardier Model DHC-8-100 Series Airplanes |
Unsafe Condition
Failure of the thunderstorm lights in the cockpit after loss of all generated electrical power, which could result in the cockpit instruments not being visible to the flight crew during certain emergency procedures, and consequent reduced controllability of the airplane.
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Required Actions
Within 6 months after the effective date of this AD, accomplish Bombardier Modification 8/0198, including changing the power supply for the thunderstorm lights from the left secondary bus to the left essential bus, in accordance with Bombardier Service Bulletin S.B. 8-24-69, Revision 'A', dated June 11, 1999.
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Compliance Time
Within 6 months after the effective date of this AD.
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Affected Aircraft
Bombardier Model DHC-8-100 series airplanes, serial numbers 003 through 020 inclusive; certificated in any category; except those on which Modification 8/0198 has been installed.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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