Document ID: chunk:federal_register_of_legislation:F2006B03375:body:0
Version: federal_register_of_legislation:F2006B03375
Segment Type: other
Provision Reference: 
Character Range: 0–993

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

 Boeing 767 Series Aeroplanes

                     AD/B767/2  Ram Air Turbine, Rotary Actuator - Replacement and Test

 Applicability: All models equipped with ram air turbine rotary actuator P/No. S258T711-3.

3/85

             Requirement: 1. Replace ram air turbine rotary actuator P/No. S258T711-3 with rotary actuator P/No. S258T711-4.

             2. Test ram air turbine deployment system in accordance with Boeing Service Bulletin 767-29-17, Revision 2, dated 29 June 1984 or later approved revision.

            Note: FAA AD 84-25-03 Amdt 39-4969 refers.

 Compliance: Before 31 July 1985.

            Background:  Moisture accumulation on the rotary actuator brake assembly can, under freezing conditions, cause the brake rotor to freeze to the brake armature, thus rendering the ram air turbine deployment system inoperative.