# AD 87-12-02: Generator Shield Jumper Wires

- Type: Airworthiness directive
- Status: Current
- Products: Mitsubishi Heavy Industries MU-2B-25, MU-2B-26 and MU-2B-35
- Effective: July 3, 1987
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Small airplane
- Amendment: 39-5629
- Registered aircraft: 43 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/81BE94AFBF57AF8686256A4D00496739.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/87-12-02

## The airworthiness directive

87-12-02 MITSUBISHI HEAVY INDUSTRIES, LTD. (MHI): Amendment 39-5629. Applies to MHI Models MU-2B-25, MU-2B-26, and MU-2B-35 (TC No. A2PC), (Serial Numbers 264 through 312, 314 through 320, 586 through 651, and 653) airplanes certificated in any category.

Compliance: Required within the next 100 hours time-in-service after the effective date of this AD, unless already accomplished.

To prevent burning of generator shield jumper wires, accomplish the following: (a) Inspect, repair (as necessary) and modify the generator circuit shield jumper wires in accordance with instructions contained in paragraphs 1. and 2. of the "Instructions" portion of MHI MU-2 Service Bulletin (S/B) No. 201 dated December 27, 1985, as amended April 25, 1986.

  (b) Aircraft may be flown in accordance with FAR 21.197 to a location where the AD may be accomplished.

  (c) An equivalent means of compliance with this AD may be used if approved by the Manager, Western Aircraft Certification Office, ANM-170W, Federal Aviation Administration, P.O. Box 92007, Worldway Postal Center, Los Angeles, California 90009-2007.

All persons affected by this directive may obtain copies of the documents referred to herein upon request to Mitsubishi Heavy Industries, Ltd., 10, Oye-Cho, Minato-ku, Nagoya, Japan; or Beech Aircraft Corporation, 9709 East Central, P.O. Box 85, Wichita, Kansas 67201; or FAA, Office of the Regional Counsel, Room 1558, 601 East 12th Street, Kansas City, Missouri 64106.

This amendment becomes effective July 3, 1987.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS A2PC](https://openairdocs.org/tcds/A2PC): Mitsubishi Heavy Industries Ltd. 203; names 1 of 7 models: MU-2B-35

## Registered aircraft it may apply to (OpenAirDocs)

Matched by airframe and engine model; the AD's applicability may narrow it by serial number, part number or equipment.

- Aircraft: 43 (43 by airframe model, 0 by engine model)
- Makers: Mitsubishi 43

Models with the most aircraft:

- [Mitsubishi MU-2B-25](https://openairdocs.org/model/mitsubishi-mu-2b-25): 23 aircraft (airframe model)
- [Mitsubishi MU-2B-26](https://openairdocs.org/model/mitsubishi-mu-2b-26): 16 aircraft (airframe model)
- [Mitsubishi MU-2B-35](https://openairdocs.org/model/mitsubishi-mu-2b-35): 4 aircraft (airframe model)

All 3 models: https://openairdocs.org/ad/87-12-02/models.md
Every aircraft: https://openairdocs.org/ad/87-12-02/aircraft.md

Its text cites no advisory circulars or STCs.

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