80-15-03 MITSUBISHI HEAVY INDUSTRIES, LIMITED: Amendment 39-3843. Applies to Models MU-2B, MU-2B-10, MU-2B-15, MU-2B-20, and MU-2B-25 Airplanes with serial numbers 005 through 164, certificated in all categories.
Compliance required as indicated.
To prevent possible fire due to the baggage of the rear baggage compartment coming into contact with engine bleed air tubing, accomplish the following:
(a) Within the next 50 hours time in service after the effective date of this AD, unless already accomplished, install heatproof insulation between the engine bleed air tubing and the rear baggage compartment in accordance with the "Instructions" section of Mitsubishi Service Bulletin No. 070C, dated January 7, 1976, or an FAA-approved equivalent.
(b) Within the next 100 hours time in service after the effective date of this AD, unless already accomplished, modify the baggage compartment ceiling in accordance with Mitsubishi MU-2 Service Bulletin No. 182, dated November 16, 1979, or an FAA-approved equivalent.
(c) Aircraft that have been modified in accordance with Mitsubishi MU-2 Service Recommendation No. 033 or No. 033A are exempt from complying with paragraph (b) of this AD.
(d) For purposes of complying with this AD, an FAA-approved equivalent may be approved by the Chief, Engineering and Manufacturing District Office, FAA, Pacific-Asia Region, Honolulu, Hawaii.
NOTE: All persons affected by this directive who have not already received the service bulletins from the manufacturer may obtain copies upon request to Mitsubishi Heavy Industries, Ltd., 10, Oye-cho, Minato-ku, Nagoya, Japan, or Mitsubishi Aircraft International, Inc., P.O. Box 3848, San Angelo, Texas 76901. These documents may also be examined at FAA, Engineering and Manufacturing District Office, Rm. 7321, 300 Ala Moana Blvd., Honolulu, Hawaii 96850, or Rules Docket, Rm. 916, FAA, 800 Independence Avenue, S.W., Washington, D.C. 20591.
This supersedes Amendment 39-2748 (41 FR 44997), AD 76-21-02.
This amendment becomes effective July 24, 1980.