Document ID: chunk:federal_register_of_legislation:F2006B09149:body:0
Version: federal_register_of_legislation:F2006B09149
Segment Type: other
Provision Reference: 
Character Range: 0–891

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

 DHC-6 (Twin Otter) Series Aeroplanes

AD/DHC-6/61
 Amdt 1

 Applicability: All models.

 Wing Main Spar Lower Cap Angles 7/91

            Requirement: Action in accordance with the Technical Requirements of Transport Canada AD CF- 87-02, R1.

            Note: De Havilland SB 6/492 Revision A refers.

            Compliance: As specified in the Requirement Document with a revised effective date of 11 July 1991 for Australian registered aircraft.

            Background: Exfoliation corrosion in the main spar cap lower angles has been reported on older aircraft. Amendment 1 is raised to reflect a revision of the related Country of origin AD which was issued to remove flight hour limitations from the compliance time requirements.