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Airworthiness Directive

AD 2010-20-23 75 FR 61046 Active

Federal Aviation Administration · 14 CFR part 39

Requires initial and repetitive visual inspections of the engine crankcase for cracks.

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

FR document
2010-24629
Amendment
39-16458
Published
2010-10-04
Effective
2010-11-08
Models covered
2

Last live check: 2026-08-19

Printed from https://aircraftdirectives.com/ad/2010-20-23 · AircraftDirectives restates official FAA and manufacturer records; the official sources named on this sheet control. Not an airworthiness determination.

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AD

2010-20-23

FR doc 2010-24629 · 75 FR 61046

AD 2010-20-23Published 2010-10-04Effective 2010-11-08

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 initial and repetitive visual inspections of the engine crankcase for cracks.

Supersedes an earlier directive. See the official text.

Full official abstract

The FAA is superseding an existing airworthiness directive (AD) for certain serial numbers (S/Ns) of Bombardier-Rotax GmbH type 912 F and 914 F series reciprocating engines. That AD currently requires initial and repetitive visual inspections of the engine crankcase for cracks. This AD requires those same inspections, adds the 912 S series to the affected population, adds a test procedure to determine the engine suitability for a special flight permit, and changes applicability from engine S/N to crankcase S/N. This AD results from an increase in the affected crankcase population. We are issuing this AD to prevent oil loss caused by cracks in the engine crankcase, which could lead to in-flight failure of the engine and forced landing.

More directives for Rotax 912

  1. AD 2026-16-11 Airworthiness Directives; BRP-Rotax GmbH & Co KG (Formerly BRP-Powertrai... Effective 2026-08-28
  2. AD 2025-15-03 Airworthiness Directives; BRP-Rotax GmbH & Co KG (Formerly BRP-POWERTRAI... Effective 2025-08-06
  3. AD 2025-07-02 Airworthiness Directives; BRP-Rotax GmbH & Co KG (Formerly BRP-POWERTRAI... Effective 2025-04-21
  4. AD 2023-17-13 Airworthiness Directives; BRP-Rotax GmbH & Co KG (Formerly BRP-POWERTRAI... Effective 2023-09-20
  5. AD 2019-21-12 Airworthiness Directives; BRP-Rotax GmbH & Co KG Engines Effective 2019-11-19

All Rotax 912 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 2 models in our index