AD 93-07-08

93-07-08 AEROSPATIALE: Amendment 39-8540. Docket 92-NM-128-AD.

Applicability: Model ATR42-300 and -320 series airplanes and Model ATR72-100 and - 200 series airplanes, as listed in Aerospatiale Service Bulletins ATR42-55-0005, Revision 2, dated October 28, 1991, and ATR72-55-1001, Revision 2, dated October 28, 1991; certificated in any category.

Compliance: Required as indicated, unless accomplished previously.

To prevent reduced controllability of the airplane, accomplish the following:

(a) Within 30 days after the effective date of this AD, remove the cotter pins on the left and right elevator tab hinges; recheck the torque of the nuts; and install correct size cotter pins, in accordance with Aerospatiale Service Bulletin ATR42-55-0005, dated November 9, 1990, or Revision 1, dated May 28, 1991, or Revision 2, dated October 28, 1991 (for Model ATR42-300 and -320 series airplanes); or Aerospatiale Service Bulletin ATR72-55-1001, dated November 9, 1990, or Revision 1, dated April 10, 1991, or Revision 2, dated October 28, 1991 (for Model ATR72-100 and -200 series airplanes); as applicable.

(b) An alternative method of compliance or adjustment of the compliance time that provides an acceptable level of safety may be used if approved by the Manager, Standardization Branch, ANM-113. Operators shall submit their requests through an appropriate FAA Principal Maintenance Inspector, who may add comments and then send it to the Manager, Standardization Branch, ANM-113.

NOTE: Information concerning the existence of approved alternative methods of compliance with this AD, if any, may be obtained from the Standardization Branch, ANM-113.

(c) 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.

(d) The removal and installation shall be done in accordance with the following Aerospatiale service bulletins, as applicable, which contain the specified effective pages:

Service Bulletin Referenced and Date

Page Number Revision Level Shown on Page Date Shown on Page ATR42-55-0005, November 9, 1990 1-7 Original November 9, 1990 ATR42-55-0005, Revision 1, May 28, 1991 1-3, 5, 7

4, 6 1

Original May 28, 1991

November 9, 1990 ATR42-55-0005, Revision 2, October 28, 1991 1-3,

4, 6 5, 7 2

Original 1 October 28, 1991

November 9, 1990 May 28, 1991 ATR72-55-1001, November 9, 1990 1-7 Original November 9, 1990 ATR72-55-1001, Revision 1, April 10, 1991 1-2, 5, 7

3-4, 6 1

Original April 10, 1991

November 9, 1990 ATR7-55-1001, Revision 2, October 28, 1991 1-2

3-4, 6 5, 7 2

Original 1 October 28, 1991

November 9, 1990 April 10, 1991

This incorporation by reference was approved by the Director of the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR Part 51. Copies may be obtained from Aerospatiale, 316 Routede Bayonne, 31060 Toulouse, Cedex 03, France. Copies may be inspected at the FAA, Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton, Washington; or at the Office of the Federal Register, 800 North Capitol Street, NW., suite 700, Washington, DC.

(e) This amendment becomes effective on May 26, 1993.