Document ID: chunk:federal_register_of_legislation:F2008L02896:body:0:p4
Version: federal_register_of_legislation:F2008L02896
Segment Type: other
Provision Reference: 
Character Range: 10004–10931

effective date of this AD but not later than 30 November 2008.

             For Requirement 2 - At the next shop visit after the effective date of this AD but not later than 30 June 2011.

             For Requirement 3 - At the next shop visit after the effective date of this AD but not later than 30 June 2011.

             For Requirement 4 - From the effective date of this AD.
             This Airworthiness Directive becomes effective on 28 August 2008.
Background:  This AD results from instances of oil loss from the No. 4 bearing compartment.  The issuing of this AD is intended to prevent heat damage to high-pressure turbine (HPT) and low-pressure turbine (LPT) critical life limited hardware such as the HPT stage 1-2 airseal.  Damage to the HPT stage 1-2 airseal could cause uncontained engine failure and damage to the aeroplane.

James Coyne
Delegate of the Civil Aviation Safety Authority

18 July 2008