Commercial Fixed Wing
Situational Awareness
Aircraft Equipment Problem Less Severe; Deviation / Discrepancy - Procedural Published Material / Policy
Aircraft Aircraft Damaged; General Maintenance Action
Human Factors; Environment - Non Weather Related; Procedure
While performing rudder lube tasks for aircraft [coming out of] storage; the aircraft rudder was inadvertently damaged during the removal of the flight control lock.During restoring the aircraft to normal condition after completion of rudder Lube AMM XX-XX-XX/XXX; AMM YY-YY-YY-YYY-YYY an additional lift/personnel should have been in place to remove pressure off lock rather than move rudder hydraulically to enable removing rudder lock.
We were assigned the rudder lube for aircraft [coming out of] storage. The rudder was damaged while trying to remove the actuator locks.The rudder could not be moved from the leading edge and pulling the lock at the same time. When trying to use hydraulic systems to move rudder full right to over come the weight; the damage occurred. We should have used an additional person to move the trailing edge of the rudder manually as per AMM XX-XX-XX/XXX.
Air carrier maintenance technicians reported that the rudder was inadvertently damaged while preparing to perform rudder lube on an aircraft that was being returned to service from storage.