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Airworthiness Directive

AD 2020-11-13 85 FR 35177 Active

Federal Aviation Administration · 14 CFR part 39

Requires these inspections and replacement if necessary, removes a certain inspection requirement for certain airplanes, and adds a new requirement to replace the rear spar fitting and nacelle attaching structure with a new…

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FR document
2020-12379
Amendment
39-19917
Published
2020-06-09
Effective
2020-07-14
Models covered
1

Last live check: 2026-10-04

Printed from https://aircraftdirectives.com/ad/2020-11-13 · AircraftDirectives restates official FAA and manufacturer records; the official sources named on this sheet control. Not an airworthiness determination.

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AD

2020-11-13

FR doc 2020-12379 · 85 FR 35177

AD 2020-11-13Published 2020-06-09Effective 2020-07-14

Supersedes 2010-23-04

Supersedence is read from the Federal Register text of the newer AD — the FAA publishes no structured field for it — and names only ADs held in our index.

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 these inspections and replacement if necessary, removes a certain inspection requirement for certain airplanes, and adds a new requirement to replace the rear spar fitting and nacelle attaching structure with a new nacelle attachment fitting.

Full official abstract

The FAA is superseding Airworthiness Directive (AD) 2010-23- 04, which applied to all De Havilland Aircraft of Canada Limited Model DHC-8-400 series airplanes. AD 2010-23-04 required repetitive detailed inspections of the nacelle attachment fittings for cracks, a conductivity inspection of the nacelle attachment fittings, and replacement if necessary. This AD continues to require these inspections and replacement if necessary, removes a certain inspection requirement for certain airplanes, and adds a new requirement to replace the rear spar fitting and nacelle attaching structure with a new nacelle attachment fitting. This AD was prompted by a determination that it is necessary to do a replacement with new nacelle attachment fittings. The FAA is issuing this AD to address the unsafe condition on these products.

More directives for de Havilland DHC-8 Dash 8

  1. AD 2026-11-06 Airworthiness Directives; De Havilland Aircraft of Canada Limited (Type ... Effective 2026-07-09
  2. AD 2026-08-07 Airworthiness Directives; De Havilland Aircraft of Canada Limited (Type ... Effective 2026-06-03
  3. AD 2025-19-05 Airworthiness Directives; De Havilland Aircraft of Canada Limited (Type ... Effective 2025-10-31
  4. AD 2025-05-06 Airworthiness Directives; De Havilland Aircraft of Canada Limited (Type ... Effective 2025-04-16
  5. AD 2024-22-07 Airworthiness Directives; De Havilland Aircraft of Canada Limited (Type ... Effective 2024-12-31

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