Airworthiness Directive

AD 2018-03-22 83 FR 6455 Superseded

Federal Aviation Administration · 14 CFR part 39

Requires removal of certain power turbine (PT) disks installed on the affected engines.

FR document
2018-02994
Amendment
39-19195
Published
2018-02-14
Effective
2018-03-21
Models covered
1

Last live check: 2026-08-19

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AD

2018-03-22

FR doc 2018-02994 · 83 FR 6455

AD 2018-03-22Published 2018-02-14Effective 2018-03-21

Superseded by 2020-15-03

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 removal of certain power turbine (PT) disks installed on the affected engines.

Full official abstract

We are adopting a new airworthiness directive (AD) for GE Aviation Czech s.r.o. M601D-11, M601E-11, M601E-11A, M601E-11AS, M601E- 11S, and M601F turboprop engines. This AD requires removal of certain power turbine (PT) disks installed on the affected engines. This AD was prompted by a design review by the manufacturer that determined PT rotors with certain disks have less overspeed margin than originally stated during product certification. We are issuing this AD to address the unsafe condition on these products.

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All GE Aviation Czech M601/H80 directives

Applies to 1 model in our index