McFarlane K65773-00 Wing Root Moulding is an FAA-PMA replacement exterior aircraft trim component designed to provide a clean aerodynamic transition between the wing and fuselage on compatible Piper aircraft. This wing root moulding helps seal and finish the wing-to-fuselage junction, improving aircraft appearance while supporting proper airflow management around the wing root area.

Manufactured from a durable flexible compound designed for easier installation than traditional rigid materials, the moulding provides excellent fit, weather resistance, and long-term service performance. Its improved flexibility helps simplify installation while maintaining a smooth exterior contour that follows the aircraft wing root profile.

The 11-foot length provides sufficient material for installation on one wing, allowing replacement of worn, cracked, or deteriorated original wing root moulding. Properly installed wing root seals and mouldings help protect the airframe interface from environmental exposure while maintaining the aircraft's finished aerodynamic appearance.

This FAA-PMA replacement component is suitable for various Piper PA-28 through PA-44 aircraft applications. Routine inspection should include checking for cracking, hardening, separation, and deterioration caused by age or environmental exposure to ensure continued protection and proper aircraft finish.

Key Features

- Part Number: K65773-00
- Manufacturer: McFarlane Aviation / Knots 2U
- Component: Wing Root Moulding
- Approval: FAA-PMA replacement part
- Length: 11 ft
- Application: Wing-to-fuselage exterior trim system
- Designed for compatible Piper PA-28 through PA-44 aircraft
- Flexible compound construction for easier installation and improved fit
- Provides aerodynamic finishing and protection at the wing root junction
- Helps restore original aircraft exterior appearance and sealing performance