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Airworthiness Directive

AD 2021-19-11 86 FR 57030 Active

Federal Aviation Administration · 14 CFR part 39

Requires a one-time inspection of the rudder actuator bracket mounting nuts, and corrective actions if necessary.

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FR document
2021-22292
Amendment
39-21729
Published
2021-10-14
Effective
2021-11-18
Models covered
1

Last live check: 2026-10-04

Printed from https://aircraftdirectives.com/ad/2021-19-11 · AircraftDirectives restates official FAA and manufacturer records; the official sources named on this sheet control. Not an airworthiness determination.

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AD

2021-19-11

FR doc 2021-22292 · 86 FR 57030

AD 2021-19-11Published 2021-10-14Effective 2021-11-18

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 a one-time inspection of the rudder actuator bracket mounting nuts, and corrective actions if necessary.

Full official abstract

The FAA is adopting a new airworthiness directive (AD) for certain De Havilland Aircraft of Canada Limited Model DHC-8-102, -103, and -106 airplanes; Model DHC-8-201 and -202 airplanes; Model DHC-8- 301, -311, and -315 airplanes; and Model DHC-8-400, -401, and -402 airplanes. This AD was prompted by reports that mounting nuts attaching the rudder actuator bracket to the vertical stabilizer have been found cracked or missing due to hydrogen embrittlement. This AD requires a one-time inspection of the rudder actuator bracket mounting nuts, and corrective actions if necessary. The FAA is issuing this AD to address the unsafe condition on these products.

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All de Havilland DHC-8 Dash 8 directives

View on Federal Register (opens in a new tab) View this AD in FAA DRS (opens in a new tab) Print AD packet (opens the full Federal Register document in a new tab)

Applies to 1 model in our index