1AD/BEECH 90/58 - Wing Fatigue Life Limitation

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

 

Image unavailable in extracted text Beechcraft 90 and 65-90 (King Air) Series Aeroplanes

 

AD/BEECH 90/58 Wing Fatigue Life Limitation 3/81

Applicability: All model F90 Series.

 

Requirement:  Retire the wing main spar and wing centre section carry-thru spar lower cap. Compliance:              Before exceeding 10,300 hours in service.

Note 1: This life may be revised following the completion of further tests and analysis currently being carried out by the manufacturer.

 

Note 2: On the basis of currently available fatigue substantiating data only one spar replacement is permitted. This will allow a single lifetime extension from spar cap replacement.

 

Background: Analysis and test data supplied by the manufacturer has established the above retirement life for the wing spar.