CESSNA 402C — Service Bulletins

This document is an Airworthiness Directive (AD) issued by the Civil Aviation Safety Authority of Australia, specifically addressing safety concerns related to the Cessna 400 series aircraft, including the Cessna 402C. The directive mandates inspections of wing fittings manufactured by J&R Aerospace, which have been identified as potentially unsafe due to susceptibility to stress corrosion cracking. The AD outlines the requirements for initial and repetitive inspections based on the hours of service or calendar time since installation. This document is crucial for maintaining the airworthiness of affected aircraft and ensuring pilot and passenger safety.

• The AD applies to Cessna 400 series aircraft, excluding models 404 and 441.
• Initial inspections are required for J&R Aerospace fittings with less than 1000 hours or 3 years in service.
• For fittings with more than 1000 hours or 3 years, an initial inspection must occur within 220 hours or 12 months.
• Visual inspections should focus on cracks and corrosion, especially at the inboard end of the fitting.
• The directive aligns inspection intervals with existing Supplemental Inspection Documents (SIDS) for the Cessna 401/402.