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Airworthiness Directive

AD 97-25-02 62 FR 63830 Active

Federal Aviation Administration · 14 CFR part 39

FR document
97-31675
Amendment
39-10225
Published
1997-12-03
Effective
1998-01-21
Models covered
1
Last live check
2026-09-30

Printed from https://aircraftdirectives.com/ad/97-25-02 · 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

97-25-02

FR doc 97-31675 · 62 FR 63830

AD 97-25-02Published 1997-12-03Effective 1998-01-21

Superseded by 2010-10-17

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 amending the Limitations Section of the airplane flight manual (AFM) to prohibit the positioning of the power levers below the flight idle stop while the airplane is in flight.

Full official abstract

This amendment adopts a new airworthiness directive (AD) that applies to all Mitsubishi Heavy Industry (Mitsubishi) MU-2B series airplanes. This AD requires amending the Limitations Section of the airplane flight manual (AFM) to prohibit the positioning of the power levers below the flight idle stop while the airplane is in flight. This AFM amendment will include a statement of consequences if the limitation is not followed. This AD results from numerous incidents and five documented accidents involving airplanes equipped with turboprop engines where the propeller beta was improperly utilized during flight. The actions specified by this AD are intended to prevent loss of airplane control or engine overspeed with consequent loss of engine power caused by the power levers being positioned below the flight idle stop while the airplane is in flight.

More directives for Mitsubishi MU-2

  1. AD 2020-26-14 Airworthiness Directives; Mitsubishi Heavy Industries, Ltd. Airplanes 2020-12-29
  2. AD 2016-08-19 Airworthiness Directives; Mitsubishi Heavy Industries, Ltd. Airplanes 2016-05-02
  3. AD 2015-01-02 Airworthiness Directives; Mitsubishi Heavy Industries, Ltd. Airplanes 2015-01-22
  4. AD 2010-10-17 Airworthiness Directives; Mitsubishi Heavy Industries, Ltd. Various Mode... 2010-06-17
  5. AD 2007-17-09 Airworthiness Directives; Mitsubishi Heavy Industries MU-2B Series Airpl... 2007-08-21

All Mitsubishi MU-2 directives

View on Federal Register (opens in a new tab) Search DRS manually for AD 97-25-02 (opens in a new tab)

Applies to 1 model in our index