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Airworthiness Directive

AD 2021-13-07 86 FR 31601 Superseded

Federal Aviation Administration · 14 CFR part 39

Requires recalculating the life of critical parts and, depending on the results of the recalculation, replacement of these critical parts.

Superseded by AD 2024-02-04Federal Register (opens in a new tab)

FR document
2021-12659
Amendment
39-21612
Published
2021-06-15
Effective
2021-06-30
Models covered
1

Last live check: 2026-08-19

Printed from https://aircraftdirectives.com/ad/2021-13-07 · AircraftDirectives restates official FAA and manufacturer records; the official sources named on this sheet control. Not an airworthiness determination.

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AD

2021-13-07

FR doc 2021-12659 · 86 FR 31601

AD 2021-13-07Published 2021-06-15Effective 2021-06-30

Superseded by 2024-02-04

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 recalculating the life of critical parts and, depending on the results of the recalculation, replacement of these critical parts.

Full official abstract

The FAA is adopting a new airworthiness directive (AD) for all GE Aviation Czech s.r.o. (GEAC) M601D-11, M601E-11, M601E-11A, M601E- 11AS, M601E-11S, and M601F model turboprop engines. This AD was prompted by the manufacturer finding errors in the Airworthiness Limitation Section (ALS) of the Engine Maintenance Manual (EMM), including errors in the formula to determine the equivalent flight cycles (FCs) of critical parts and errors with certain part numbers (P/ Ns). The manufacturer also determined that the life limit of a certain compressor case is not listed in the ALS section of the applicable EMM. This AD requires recalculating the life of critical parts and, depending on the results of the recalculation, replacement of these critical parts. This AD also requires replacement of a certain compressor case. The FAA is issuing this AD to address the unsafe condition on these products.

More directives for GE Aviation Czech M601/H80

  1. AD 2025-18-08 Airworthiness Directives; GE Aviation Czech s.r.o. (Type Certificate Pre... Effective 2025-10-21
  2. AD 2024-06-02 Airworthiness Directives; GE Aviation Czech s.r.o. (Type Certificate Pre... Effective 2024-04-11
  3. AD 2024-03-05 Airworthiness Directives; GE Aviation Czech s.r.o. (Type Certificate Pre... Effective 2024-04-17
  4. AD 2024-02-04 Airworthiness Directives; GE Aviation Czech s.r.o. (Type Certificate Pre... Effective 2024-03-28
  5. AD 2024-01-03 Airworthiness Directives; GE Aviation Czech s.r.o. (Type Certificate Pre... Effective 2024-02-27

All GE Aviation Czech M601/H80 directives

View on Federal Register (opens in a new tab) Search DRS manually for AD 2021-13-07 (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