Beechcraft 77 Skipper — Maintenance Manual

This document is a Schedule of Airworthiness Directives for the Beechcraft 77 Skipper series aeroplanes, issued by the Civil Aviation Safety Authority of Australia. It outlines specific maintenance requirements related to the wing structure of the aircraft, including inspection and bolt replacement protocols. The directives are crucial for ensuring the airworthiness and safety of the aircraft, particularly concerning the fatigue life limitations of the wing structure. Compliance with these directives is mandatory for all models of the Beechcraft 77 Skipper, and they must be adhered to within specified timeframes to maintain operational safety.

• All models of the Beechcraft 77 Skipper are subject to these directives.
• Wing structure inspection and bolt replacement must occur by 7000 hours of service.
• Retirement of the wing and carry-through structure is required by 12000 hours of service.
• The wing's safe fatigue life is established at 12000 hours based on manufacturer testing.
• Compliance with these directives is mandatory for maintaining airworthiness.