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Airworthiness Directive

AD 2018-22-01 83 FR 55255 Active

Federal Aviation Administration · 14 CFR part 39

FR document
2018-23775
Amendment
39-19474
Published
2018-11-05
Effective
2018-12-10
Models covered
1
Last live check
2026-10-02

Printed from https://aircraftdirectives.com/ad/2018-22-01 · 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

2018-22-01

FR doc 2018-23775 · 83 FR 55255

AD 2018-22-01Published 2018-11-05Effective 2018-12-10

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 removing certain second stage turbine rotors from service at a reduced life limit.

Full official abstract

We are superseding Airworthiness Directive (AD) 88-12-10 for certain Honeywell International Inc. (Honeywell) TPE331 turboprop engines. AD 88-12-10 required reducing the life limit for certain second stage turbine rotors. This AD requires removing certain second stage turbine rotors from service at a reduced life limit. This AD was prompted by report that a TPE331-11U engine experienced an uncontained rotor separation. In addition, cracks were discovered through eddy current inspection (ECI) in the bore of the second stage turbine rotor assembly after publication of AD 88-12-10. We are issuing this AD to address the unsafe condition on these products.

More directives for Honeywell TPE331

  1. AD 2018-17-15 Airworthiness Directives; Honeywell International Inc. Turboprop and Tur... 2018-09-17
  2. AD 2018-13-05 Airworthiness Directives; Honeywell International Inc. Turboprop and Tur... 2018-06-21
  3. AD 2018-02-14 Airworthiness Directives; Honeywell International Inc. Turboprop and Tur... 2018-01-24
  4. AD 2016-21-07 Airworthiness Directives; Honeywell International Inc. Turboprop Engines 2016-10-24
  5. AD 2016-18-17 Airworthiness Directives; Honeywell International Inc. Turboprop and Tur... 2016-09-30

All Honeywell TPE331 directives

View on Federal Register (opens in a new tab) View this AD in FAA DRS (opens in a new tab)

Applies to 1 model in our index