Document ID: chunk:federal_register_of_legislation:F2006B10703:body:0:p2
Version: federal_register_of_legislation:F2006B10703
Segment Type: other
Provision Reference: 
Character Range: 2910–4816

is to be carried in the aircraft.

           The Compliance for Amendments 7 and 8, and the Compliance for Requirement 1 of Amendment 9 remains unchanged from 17 February 1993.

           This Amendment becomes effective on 31 May 2000.

           Background:  There has been cracking in the lug area of the main rotor blade root fittings and lead- lag links. Analysis of the cracking has determined that some forgings may not meet specifications. As the forgings were not serialised the blade matchings are unknown, therefore all are to be inspected.

           Amendment 4 removed the blade root inspection requirement for specific blades fitted with 7075-T73 material root fittings.

           Amendment 5 expanded the inspection to include any movement of the lead lag link bushes.

           Amendment 6 added further rotor blade part numbers.

           Amendment 7 includes the repetitive inspection requirement for the blades called up at AD/HU 369/85 Amendment 1 and standardises the inspection requirements across all blades and link assemblies.

           Amendment 8 includes the latest FAA reference.

           Amendment 9 is to clarify the requirement to apply slippage marks to the lead lag link bushes.

           Amendment 10 reduces the Requirement document Part II inspection from 25 hours tis to 15 hours tis for certain main rotor blades with more than 500 hours time in service.

           Amendment 9 of this Airworthiness Directive became effective on 6 December 1995. Amendment 8 of this Airworthiness Directive became effective on 27 April 1995.

               The original issue of this Airworthiness Directive became effective on 27 August 1979.

    William Ronald Smith
    Delegate of the Civil Aviation Safety Authority 19 May 2000

    The above AD is notified in the Commonwealth of Australia Gazette on 31 May 2000.