B767-300 and 300 ER
Maintenance Apprentice; Maintenance Powerplant
Communication Breakdown
Deviation / Discrepancy - Procedural Published Material / Policy; Ground Event / Encounter Other / Unknown
Aircraft Aircraft Damaged; General Maintenance Action
Environment - Non Weather Related; Equipment / Tooling; Human Factors
This event occurred on the right hand wing dock; as I was moving sliders out to begin maintenance; with [a spotter]. As the lighting was poor; the controls very far away; and high noise. I was unable to hear or see very well what [the spotter] was trying to tell me. I stopped the slider short of making contact with the trunion door; when [the spotter] told me to go back. I thought he told me to go forward. At that time; I heard the door give way and stopped. [We] needed to move sliders out to open aircraft for inspection. More lighting is required under both wings and Mechanical stops on sliders; to prevent contact.
I notified the operator to stop. The dock was against the truion door so I motioned and hollered for the operator to retract it but the operator pushed the extend button damaging the aircraft.
A Maintenance Technician inadvertently damaged a landing gear door panel while positioning docking equipment as a result of a breakdown in communication with his co-worker.