Document ID: chunk:federal_register_of_legislation:F2008L01098:body:0:p2
Version: federal_register_of_legislation:F2008L01098
Segment Type: other
Provision Reference: 
Character Range: 2948–4365

550 hours time in service (TIS) after the effective date of this Directive.
             For Requirement 2.a. - Before further flight after the Requirement 1 inspection.
             For Requirement 2.b. - Before further flight after any repairs accomplished in accordance with Requirement 2.a.
             For Requirement 3.a. - Within 15 days after accomplishment of the Requirement 1 inspection.
             For Requirement 3.b. - Within 5 000 hours TIS after the effective date of this Directive.
             This Airworthiness Directive becomes effective on 18 April 2008.
Background:  EASA has advised that an ATR operator reported some spurious "Pitch disconnect" warning and "AIL and R ELEV" Anti-Ice Horn Fault caution annunciations which precluded the use of the autopilot.
             During the investigation, chafed wiring was found in the rear baggage zone, close to the forward side of the aft pressure bulkhead, due to contact with a structural securing screw.  The concerned wiring harness includes rudder trim, pitch trim and stick pusher control wires.  Damages on those wires might lead to the loss of fail safe criteria for those critical functions.
             To address the unsafe condition, this Directive mandates a one-time inspection and a routing modification of the electrical wires in the bulkhead area.

James Coyne
Delegate of the Civil Aviation Safety Authority

15 April 2008