AD 93-07-11

93-07-11 MITSUBISHI HEAVY INDUSTRIES, LTD.: Amendment 39-8543. Docket No. 92-CE-49-AD.

Applicability: The following model and serial number airplanes, certificated in any category:

Models Serial Numbers MU-2B-25, MU-2B-26, MU-2B-26A, and MU-2B-40 313SA, 321SA, and 348SA through 459SA MU-2B-35, MU-2B-36, MU-2B-36A, and MU-2B-60 652SA, 661SA, and 697SA through 1569SA

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

To prevent excessive control wheel force caused by extreme elevator nose-down trim deflection, which could result in loss of control of the airplane, accomplish the following:

(a) Reduce the maximum deflection of the elevator nose-down trim to a 1-degree to 3-degree range in accordance with the INSTRUCTIONS section of Mitsubishi Service Bulletin No. 079/27-010, dated August 28, 1992.

(b) Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate the airplane to a location where the requirements of this AD can be accomplished.

(c) An alternative method of compliance or adjustment of the compliance time that provides an equivalent level of safety may be approved by the Manager, Wichita Aircraft Certification Office, FAA, 1801 Airport Road, Mid-Continent Airport, Wichita, Kansas 67209. The request shall be forwarded through an appropriate FAA Maintenance Inspector, who may add comments and then send it to the Manager, Wichita Aircraft Certification Office.

NOTE: Information concerning the existence of approved alternative methods of compliance with this AD, if any, may be obtained from the Wichita Aircraft Certification Office.

(d) The modification required by this AD shall be done in accordance with Mitsubishi Service Bulletin No. 079/27-010, dated August 28, 1992. This incorporation by reference was approved by the Director of the Federal Register in accordance with 5 U.S.C. 552(a) and 1CFR Part 51. Copies may be obtained from Mitsubishi Heavy Industries, Ltd., Nagoya Aerospace Systems, 10, Oyecho, Minato-Ku, Nagoya, Japan; or the Beech Aircraft Corporation, 9709 East Central, Wichita, Kansas 67201. Copies may be inspected at the FAA, Central Region, Office of the Assistant Chief Counsel, Room 1558, 601 E. 12th Street, Kansas City, Missouri, or at the Office of the Federal Register, 800 North Capitol Street, NW., suite 700, Washington, DC.

(e) This amendment becomes effective on June 1, 1993.