Mooney M20M Bravo — Parts Catalog

This document is a service instruction for the Mooney M20 series aircraft, specifically addressing the stabilizer trim stop/screw modification. It is intended for aircraft owners and maintenance personnel who need to perform modifications on the trim control system of the M20J, M20K, M20L, and M20M models. The instruction outlines the necessary steps to modify the trim system to prevent issues with the elevator trim control wheel and ensure proper operation of the electric trim system. The document includes detailed instructions, parts lists, and compliance requirements for the modification process.

• The modification must be completed within the next 100 flight hours.
• The maximum allowable longitudinal free play in the trim screw assembly is 0.010" Total Indicator Reading (TIR).
• Specific part numbers are required for the M20M model, including P/N 740086-001 for jam nuts and P/N 740086-005 for stop nuts.
• Proper lubrication of the gear box and trim screw assembly is essential, as referenced in the Service and Maintenance Manual.
• All modifications must be documented in the aircraft logbook before returning the aircraft to service.