85-07-06 WESTLAND HELICOPTERS LIMITED: Amendment 39-5019. Applies to Westland 30 helicopters certificated in all categories that are equipped with main rotor tie-bar pin Part Number (P/N) WK 3069-0020-101 or WK 3069-0016-101.
Compliance is required as indicted, unless already accomplished.
To prevent cracking of the main rotor blade sleeve tie-bar pin and possible loss of a main rotor blade, accomplish the following:
(a) Within 50 hours time in service after the effective date of this AD or prior to attaining 500 hours total time in service, whichever occurs later, remove tie-bar pins before further flight.
(b) An equivalent method of compliance with this AD may be used when approved by the Manager of the Brussels Aircraft Certification Office, Brussels, Belgium.
(c) Special flight permits may be issued in accordance with FAR Sections 21.197 and 21.199 to ferry aircraft to a maintenance base in order to comply with the requirements of this AD.
Alert Service Bulletin W30-05-A38, Rev. 1 dated February 26, 1985, pertains to this subject.
This amendment becomes effective April 9, 1985.