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Airworthiness Directive

AD 2026-06-03 91 FR 14643 Active

Federal Aviation Administration · 14 CFR part 39

Requires the same actions as AD 2020-14-06 and requires updated service material to be used for the Model DA 40 NG airplanes.

Federal Register (opens in a new tab)FAA DRS (opens in a new tab)

FR document
2026-05883
Amendment
39-23291
Published
2026-03-26
Effective
2026-04-30
Models covered
1

Last live check: 2026-08-19

Printed from https://aircraftdirectives.com/ad/2026-06-03 · AircraftDirectives restates official FAA and manufacturer records; the official sources named on this sheet control. Not an airworthiness determination.

This page is a reference Record, not an airworthiness or compliance determination. Official FAA and manufacturer sources control over our restatement, subject to governing law. Check applicability, current requirements and incorporated documents before acting. The owner or operator remains responsible for airworthiness and required records under 14 CFR 91.403 and 91.417, as applicable. Terms of Use: /terms.

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AD

2026-06-03

FR doc 2026-05883 · 91 FR 14643

AD 2026-06-03Published 2026-03-26Effective 2026-04-30

Supersedes 2020-14-06

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 the same actions as AD 2020-14-06 and requires updated service material to be used for the Model DA 40 NG airplanes.

Full official abstract

The FAA is superseding Airworthiness Directive (AD) 2020-14- 06, which applied to all Diamond Aircraft Industries Inc. (DAI) Model DA 40, DA 40 F, and DA 40 NG airplanes. AD 2020-14-06 required replacing affected parts, inspecting the fuel tank chambers, and removing rubber material that has detached from the fuel tank connection hoses. AD 2020-14-06 also prohibited installing an affected part on any airplane. Since the FAA issued AD 2020-14-06, additional affected parts installed during production on Model DA 40 NG airplanes have been reported. As a result, the manufacturer has published updated service material for the Model DA 40 NG. This AD requires the same actions as AD 2020-14-06 and requires updated service material to be used for the Model DA 40 NG airplanes. The FAA is issuing this AD to address the unsafe condition on these products.

More directives for Diamond DA40

  1. AD 2024-19-08 Airworthiness Directives; Diamond Aircraft Industries Inc. (Type Certifi... Effective 2024-11-29
  2. AD 2022-13-06 Airworthiness Directives; Diamond Aircraft Industries Inc. Airplanes Effective 2022-08-11
  3. AD 2020-14-06 Airworthiness Directives; Diamond Aircraft Industries Airplanes Effective 2020-08-04
  4. AD 2016-23-03 Airworthiness Directives; Diamond Aircraft Industries GmbH Airplanes Effective 2016-11-29
  5. AD 2016-22-06 Airworthiness Directives; Diamond Aircraft Industries GmbH Airplanes Effective 2016-11-16

All Diamond DA40 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