Airworthiness Directive

AD 2017-20-07 82 FR 45703 Active

Federal Aviation Administration · 14 CFR part 39

FR document
2017-20824
Amendment
39-19064
Published
2017-10-02
Effective
2017-11-06
Models covered
1
Last live check
2026-10-03
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AD

2017-20-07

FR doc 2017-20824 · 82 FR 45703

AD 2017-20-07Published 2017-10-02Effective 2017-11-06

FAA rule - 14 CFR 39

FAA rule. Compliance with an applicable AD is required under 14 CFR 39.7. Check its effective date, applicability, compliance times and current status.

Requires replacing certain circuit breakers.

Full official abstract

We are adopting a new airworthiness directive (AD) for certain Bombardier, Inc., Model DHC-8-400 series airplanes. This AD was prompted by the failure of the fire control amplifier (FCA), which was likely caused by an electrical short in a discharged squib for a fire extinguishing bottle. This AD requires replacing certain circuit breakers. We are issuing this AD to address the unsafe condition on these products.

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Applies to 1 model in our index