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Airworthiness Directive

AD 2013-20-02 78 FR 65202 Active

Federal Aviation Administration · 14 CFR part 39

Requires installing a placard on the instrument panel and revising the limitations section of the rotorcraft flight manual (RFM).

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FR document
2013-24032
Amendment
39-17608
Published
2013-10-31
Effective
2013-12-05
Models covered
1

Last live check: 2026-08-19

Printed from https://aircraftdirectives.com/ad/2013-20-02 · AircraftDirectives restates official FAA and manufacturer records; the official sources named on this sheet control. Not an airworthiness determination.

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AD

2013-20-02

FR doc 2013-24032 · 78 FR 65202

AD 2013-20-02Published 2013-10-31Effective 2013-12-05

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 installing a placard on the instrument panel and revising the limitations section of the rotorcraft flight manual (RFM).

Full official abstract

We are adopting a new airworthiness directive (AD) for Bell Model 230 helicopters. This AD requires installing a placard on the instrument panel and revising the limitations section of the rotorcraft flight manual (RFM). This AD was prompted by several incidents of third stage engine turbine wheel failures, which were caused by excessive vibrations at certain engine speeds during steady-state operations. These actions are intended to alert pilots to avoid certain engine speeds during steady-state operations, prevent failure of the third stage engine turbine, engine power loss, and subsequent loss of control of the helicopter.

More directives for Bell 230

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  2. AD 2016-08-17 Airworthiness Directives; Bell Helicopter Textron Canada Helicopters Effective 2016-05-31
  3. AD 2013-18-06 Airworthiness Directives; Bell Helicopter Textron Canada Limited (Bell) ... Effective 2013-10-17
  4. AD 2010-26-51 Airworthiness Directives; Bell Helicopter Textron Canada Limited (BHTC) ... Effective 2011-03-25
  5. AD 2010-19-51 Airworthiness Directives; Bell Helicopter Textron Canada Model 222, 222B... Effective 2010-12-09

All Bell 230 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