1AD/MU-2/52 Amdt 1 - Elevator Nose-Down Trim Limit

COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY

SCHEDULE OF AIRWORTHINESS DIRECTIVES

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Mitsubishi MU-2 Series Aeroplanes

AD/MU-2/52

Amdt 1

Elevator Nose-Down Trim Limit 9/93

Applicability: Model MU-2B-10, -15, -20, -25, -26, -30, -35, and -36, with serial numbers listed in

Mitsubishi SB 216.

Model MU-2B-25, -26, -26A, -35, -36, -36A, -40, and -60, with serial numbers listed in Mitsubishi SB 079/27-010.

Requirement: Action in accordance with Mitsubishi Mandatory SB 216 or Mandatory SB 079/27- 010, as applicable.

Note: Japan CAB AD TCD-3740-92 and FAA AD 93-07-11 Amdt 39-8543 refer.

Compliance: For aircraft that were applicable to the original issue of this Directive, compliance remains unchanged:

Within 100 hours time in service after 1 April 1993 or prior to 1 October 1993, whichever occurs first.

For aircraft that are now applicable by the issue of Amendment 1 of this Directive: Within 100 hours time in service after 19 August 1993.

Background: An analysis of the service history on the affected aircraft had revealed one accident and two incidents where the existing elevator nose-down trim deflection had caused excessive control wheel force. This Directive requires certain actions to reduce the maximum deflection of the elevator nose-down trim to a 1-degree to 3-degree range.

Amendment 1 is issued in response to the issue of a FAA AD which requires USA Type Certificated MU-2 aircraft to comply with requirements of this Directive.