COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Cessna 400 Series Aeroplanes
AD/CESSNA 400/77 Aft Auxiliary Wing Spar Attachment - Modification
Applicability: All model 421C with S/Nos. 421C0801 to 421C0886. Document: Cessna Multi-Engine Customer Care SIL ME80-38. Compliance: Before issue of Australian Certificate of Airworthiness.
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Background: The manufacturer advises that fasteners used in the attachment of the Aft Auxiliary Wing Spar Caps to the stub wing require replacement with NAS517-3-5 Screws and HL70-6 Hylok collars.