AD/DHC-8/61 - Rudder Feel Assembly Springs (Cth)

COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES

Bombardier (Boeing Canada/De Havilland) DHC-8 Series Aeroplanes

AD/DHC-8/61 Rudder Feel Assembly Springs 1/99

Applicability: DHC-8 aircraft, models 102, 103, 106, 201, 202, 301, 311, 314, and 315, serial numbers 3 through 520, excluding serial numbers 413, 450, 462, 463, 464, 465, 467, 468, 469, 473, 478, 479, 482, 487, 489, 491, 493, 495, 499, and 500.

Requirement: 1. For all aircraft operating under Flight Manual Supplement 54 - Operation from narrow runways:

1. Inspect both rudder feel springs in accordance with Part III, Accomplishment Instructions, of Bombardier Inc. Alert Service Bulletin (ASB) A8-27-82.

If either or both rudder feel springs are found to be of a non-conforming single rate configuration, operation from narrow runways in accordance with Flight Manual Supplement 54 is not permitted before accomplishment of Requirement 1.b. below and the following must be added to the LIMITATIONS section of the Flight Manual Supplement 54:

"OPERATION FROM NARROW RUNWAYS IN ACCORDANCE WITH FLIGHT MANUAL SUPPLEMENT 54 IS NOT PERMITTED BEFORE BOTH RUDDER FEEL SPRINGS HAVE BEEN REPLACED IN ACCORDANCE WITH PART III, ACCOMPLISHMENT INSTRUCTIONS, OF ASB A8-27-82".

This Flight Manual amendment task may be accomplished by inserting a copy of this Directive into the Limitations section of the Flight Manual.

b. Replace both rudder feel springs in accordance with Part III, Accomplishment Instructions, of ASB A8-27-82.

2. For aircraft not operating under Flight Manual Supplement 54:

Inspect both rudder feel springs in accordance with Part III, Accomplishment Instructions, of Bombardier Inc. ASB A8-27-82. If either or both springs are of a single rate configuration, both springs must be replaced.