AircraftDirectives
Airworthiness Directive

AD 2018-20-18 83 FR 52118

Federal Aviation Administration · 14 CFR part 39

FR document
2018-22144
Amendment
39-19452
Published
2018-10-16
Models covered
1
Last live check
2026-08-17

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AD

2018-20-18

FR doc 2018-22144 · 83 FR 52118

AD 2018-20-18Published 2018-10-16Effective 2018-11-20

Requires revising the maintenance or inspection program, as applicable.

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 a report of uncommanded deployment of the ground spoilers when the power levers were advanced for takeoff, which was caused by faulty switches in the power lever module. This AD requires revising the maintenance or inspection program, as applicable. We are issuing this AD to address the unsafe condition on these products.

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Applies to 1 model in our index