AD 87-12-02

final rule

Airworthiness Directives; Mitsubishi Model MU-2B-25, MU-2B-26 and MU-2B-35 Series Airplanes

AD Number
87-12-02
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Unknown
FR Citation
This information is not available.
Technical illustration of an aircraft electrical generator and wiring assembly
Problem area Electrical system

Applicability

TypeManufacturerModelDetails
aircraft Mitsubishi Heavy Industries, Ltd. MU-2B-25 Airworthiness Directives; Mitsubishi Model MU-2B-25, MU-2B-26 and MU-2B-35 Series Airplanes
aircraft Mitsubishi Heavy Industries, Ltd. MU-2B-26 Airworthiness Directives; Mitsubishi Model MU-2B-25, MU-2B-26 and MU-2B-35 Series Airplanes
aircraft Mitsubishi Heavy Industries, Ltd. MU-2B-35 Airworthiness Directives; Mitsubishi Model MU-2B-25, MU-2B-26 and MU-2B-35 Series Airplanes

Unsafe Condition

Burning of generator shield jumper wires

AI-generated summary from the source AD text. Verify against the official source before acting.

Required Actions

Inspect, repair (as necessary), and modify the generator circuit shield jumper wires in accordance with MHI MU-2 Service Bulletin No. 201 dated December 27, 1985, as amended April 25, 1986. Aircraft may be flown under FAR 21.197 to a location where the AD can be accomplished. Equivalent compliance may be approved by the Manager, Western Aircraft Certification Office.

AI-generated summary from the source AD text. Verify against the official source before acting.

Compliance Time

within the next 100 hours time-in-service after the effective date of this AD

AI-generated summary from the source AD text. Verify against the official source before acting.

Affected Aircraft

Mitsubishi Heavy Industries, Ltd. 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

AI-generated summary from the source AD text. Verify against the official source before acting.

Federal Register Abstract

Generator Shield Jumper Wires

Applicability Source Text

Show captured applicability text from the source AD
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AD Number:
87-12-02
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Airworthiness Directives; Mitsubishi Model MU-2B-25, MU-2B-26 and MU-2B-35 Series Airplanes
Subject:
Generator Shield Jumper Wires
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
07/03/1987
Make:
Mitsubishi Heavy Industries, Ltd.
Model:
MU-2B-25 | MU-2B-26 | MU-2B-35
Product Type:
Aircraft
Product Subtype:
Small Airplane
Affected AD:
Superseded AD:
Affected By:
Superseded By:
Service/Office:
Office of Primary Responsibility:
CFR Part Reference:
Part 39
Comments:
AIRWORTHINESS DIRECTIVES FINAL RULES: 87-12-02
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:   39-5629

AD NUMBER:   87-12-02

SUBJECT HEADING:   Airworthiness Directives; Mitsubishi Model MU-2B-25, MU-2B-26 and MU-2B-35 Series Airplanes

ACTION:  

SUMMARY:  

DATES:   Effective July 3, 1987.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:   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.

FOOTER:

Document Text

Show stored source text (verify against official source)
AD Final Rules - DRS_87-12-02.html
Copy URL
Print/Save as PDF
Document Versions
 Feedback
Details
AD Number:
87-12-02
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Airworthiness Directives; Mitsubishi Model MU-2B-25, MU-2B-26 and MU-2B-35 Series Airplanes
Subject:
Generator Shield Jumper Wires
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
07/03/1987
Make:
Mitsubishi Heavy Industries, Ltd.
Model:
MU-2B-25 | MU-2B-26 | MU-2B-35
Product Type:
Aircraft
Product Subtype:
Small Airplane
Affected AD:
Superseded AD:
Affected By:
Superseded By:
Service/Office:
Office of Primary Responsibility:
CFR Part Reference:
Part 39
Comments:
AIRWORTHINESS DIRECTIVES FINAL RULES: 87-12-02
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:   39-5629

AD NUMBER:   87-12-02

SUBJECT HEADING:   Airworthiness Directives; Mitsubishi Model MU-2B-25, MU-2B-26 and MU-2B-35 Series Airplanes

ACTION:  

SUMMARY:  

DATES:   Effective July 3, 1987.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:   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.

FOOTER:

Source: Official FAA Source ↗

Retrieved: Apr 8, 2026

Rights: U.S. Government Public Domain

This site is not affiliated with or endorsed by the FAA. Always verify with official sources.