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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
Amendment 39-4472; AD 82-21-03
Airworthiness Directives; Mitsubishi Model MU-2B/-10/-15/-20/-25, MU-2B-30 and MU-2B-36 Series Airplanes
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Preamble Information
DATES: Effective October 14, 1982.
Regulatory Information
82-21-03 MITSUBISHI HEAVY INDUSTRIES, LTD., (MHI): Amendment 39-4472. Applies to MU-2B/-10/-15/-20/-25 (Serial Numbers 005 thru 238), MU-2B-30 (Serial Numbers 502 thru 547), and MU-2B-36 (Serial Number 501) airplanes certificated in any category. (This AD does not apply to MU-2B airplanes having serial numbers with the suffix "SA.")
COMPLIANCE: Required as indicated unless already accomplished.
To ensure correct engine fire detection and DC power emergency relay wiring, within the next 25 hours time-in-service after the effective date of this AD, accomplish the following:
a) Inspect and, if necessary, repair the engine fire detecting and DC power emergency relay circuits as prescribed in Sections I and II of MHI Service Bulletin 187, dated May 27, 1982.
b) Aircraft may be flown in accordance with FAR 21.197 to a maintenance facility where this inspection can be accomplished.
c) An alternate means of compliance with this AD may be used when approved by the Manager, Honolulu Aircraft Certification Field Office, Northwest Mountain Region, Federal Aviation Administration, 300 Ala Moana Boulevard, Honolulu, Hawaii 96850.
This amendment becomes effective on October 14, 1982.
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