CESSNA 172N SKYHAWK — Airworthiness Directives

This document is an Aviation Maintenance Alert issued by the FAA, focusing on various safety notices and airworthiness directives relevant to multiple aircraft models, including the Cessna 172N Skyhawk. It highlights critical issues that have been reported by operators and maintenance personnel, aiming to improve aircraft reliability and safety. The document includes specific incidents, recommended inspections, and necessary actions to address potential safety concerns. It serves as a vital resource for pilots, maintenance technicians, and aircraft owners to stay informed about safety issues affecting their aircraft, particularly those related to fuel systems and engine components.

• Cessna 172N Skyhawk carburetor (P/N 10-5009) may separate if not properly torqued during overhaul.
• Check for missing parts in the airbox assembly (P/N 0550364-7) during inspections.
• Inspect for fuel leaks at the air inlet elbow (P/N 0550362-3) leading to the fuel control unit.
• Replace Velcon Filters ACO-XXXXXC cartridges with ACO-XXXXXK cartridges to prevent fuel contamination.