Maintenance
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Maintenance Manuals
Borescoping
Flap Motor Issues
The old style flap motor (without position sensor) has originally a Motion Systems motor, later ones have a Ametek/Pittman motor. The Motion Systems motor can press grease all the way up to the brushes and may need a one time cleaning and removal of excess grease in the gearbox. The Pittman motor has a long service live but may burn out eventually. One can purchase a replacement motor or change to the new style actuator with internal position sensor. The replacement motor doesn't come with the worm gear, so only good as a donor for a new brush assembly.