87-03-09 WYTWORNIA SPRZETU KOMUNIKACYJNEGO, PZL-MIELEC: Amendment 39-5522. Applies to Model M18 Dromader (Serial Number 1Z001-01 through 1Z014-30, and 1Z015-01 through 1Z016-03) airplanes certificated in any category.
Compliance: Required as indicated after the effective date of this AD, unless already accomplished.
To prevent loosening of the engine mount shock absorber nuts, accomplish the following:
(a) Within the next 100 hours time-in-service (TIS), replace all 0.8mm safety wire on the M6400- 105 nuts with 1.0 to 1.2mm (0.039 inch to 0.047 inch) wire as described in paragraph III.1, PZL-Mielec M18 Mandatory Service Bulletin (MSB) No. E/02.082/85 dated September 6, 1985.
(b) Within the next 100 hours TIS and at each 100 hours TIS thereafter, visually inspect the Part Number M6400-105 nuts for security. If loose, prior to further flight, tighten and secure as described in paragraph III.2 of the subject MSB.
(c) Within the next 600 hours TIS or the nexttime the engine frame is removed, whichever occurs first, perform the engine frame modification described in paragraph III.3 of the subject MSB.
(d) The actions in paragraph (b) of this AD may be discontinued after accomplishment of the modification described in paragraph (c) of this AD.
(e) Aircraft may be flown in accordance with Federal Aviation Regulation 21.197 to a location where this AD can be accomplished.
(f) The intervals between the repetitive inspections required by this AD may be adjusted up to 10 percent of the specified interval to allow accomplishment of these inspections concurrent with other scheduled maintenance on the airplane.
(g) An equivalent means of compliance with this AD, if used, must be approved by the Manager, Aircraft Certification Staff, AEU-100, Europe, Africa and Middle East Office, FAA, c/o American Embassy, B- 1000 Brussels, Belgium.
All persons affected by this directive may obtain copies of the documents referred to hereinupon request to Wytwornia Sprzetu Komunikacyjnego; or FAA, Office of the Regional Counsel, Room 1558, 601 East 12th Street, Kansas City, Missouri 64106.
This amendment becomes effective on March 1, 1987.