Document ID: chunk:federal_register_of_legislation:F2006B11008:body:0
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COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 106 CIVIL AVIATION SAFETY AUTHORITY
 SCHEDULE OF AIRWORTHINESS DIRECTIVES

 Pratt and Whitney Turbine Engines - JT9D Series

 AD/JT9D/15 High Pressure Turbine Airseal 12/86

TX

 Applicability: JT9D-7R4D, E models.

            Requirement: Carry out the requirements of Pratt and Whitney ASB JT9D-7R4-72-318, Paragraph 2 "Accomplishment Instructions".

 Compliance: According to a program agreed to by the Secretary. Effective:  1 December 1986.
            Background:  This Directive has been issued to require compliance with the Accomplishment Instructions of P.W.A. A.S.B. JT9D-7R4-72-318. The A.S.B. details inspection and modification of the high pressure turbine to preclude cracking of the stage 1-2 airseal.