ATA 27

Flap Actuator Dust Seal
When accomplishing routine inspections in the area of the flap actuators, pay close attention to the dust seal in the end of the actuator. We find them split or missing. This allows dirt and water to be drawn into the actuator housing, which in turn, leads to corrosion and premature wear of the sleeve bearings and actuator shaft. The dust seal, P/N B132-116-2, is readily available fron the Worthington Aviation parts department.