Document ID: chunk:federal_register_of_legislation:F2005L01064:body:0:p2
Version: federal_register_of_legislation:F2005L01064
Segment Type: other
Provision Reference: 
Character Range: 2859–4441

at which time the interval can increase to 150 flight cycles after the first repeat inspection.
                For engines with discs that have already shown compliance with Revision 3 or later of the reference document that used the ultrasonic technique; within 150 flight cycles from the effective date of this Directive and thereafter at intervals of 150 flight cycles.

                For Fan Discs P/N BRR20791 installed in Engine S/N 11453(GV), S/N 12353(GX) and all subsequent engines, and P/N BRR20791 fan discs held as spares with a JAA form certificate dated on or after 1 January 2002:

                Initial inspection within 150 flight cycles since new.

                For Fan Discs P/N BRR20791 held as spares with a JAA Form One certificate date on or after 1 January 2002:

                Initial inspection within 150 flight cycles since new.

                For Requirement 2:

                For all Fan Discs:

                At each "A" check.
                This Amendment becomes effective on 9 June 2005.
Background:     In service experience from the BR700-710 engine fleet has shown the possibility of fan disc cracks. Fan disc cracks can result in severe damage to the engine and potential hazard to the aircraft.

                This amendment provides updates to the reference document and terminating action to the requirements by fitment of a new designed fan disc.

                The original issue of this Directive became effective 2 October 2003.

James Coyne
Delegate of the Civil Aviation Safety Authority

28 April 2005