Airworthiness Directive

AD 2004-02-05 69 FR 4454 Active

Federal Aviation Administration · 14 CFR part 39

Requires replacing certain flight guidance modules with improved modules, and certain flight control electronic control units with improved units.

FR document
04-1910
Amendment
39-13440
Published
2004-01-30
Effective
2004-03-05
Models covered
1

Last live check: 2026-08-19

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AD

2004-02-05

FR doc 04-1910 · 69 FR 4454

AD 2004-02-05Published 2004-01-30Effective 2004-03-05

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 flight guidance modules with improved modules, and certain flight control electronic control units with improved units.

Full official abstract

This amendment adopts a new airworthiness directive (AD); applicable to certain Bombardier Model DHC-8-400, -401, and -402 airplanes; that requires replacing certain flight guidance modules with improved modules, and certain flight control electronic control units with improved units. This action is necessary to prevent loss of the autopilot or manual pitch trim, which may increase the workload of the flightcrew and, under certain conditions, could result in reduced controllability of the airplane. This action is intended to address the identified unsafe condition.

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Applies to 1 model in our index