No Aircraft
Maintenance Airframe; Maintenance Powerplant
Communication Breakdown; Situational Awareness; Troubleshooting
Deviation / Discrepancy - Procedural Published Material / Policy; Ground Event / Encounter Other / Unknown
General None Reported / Taken
Company Policy; Equipment / Tooling; Human Factors
We have a malfunctioning hangar door here at ZZZ. The door to our Hangar Bay-X moves when other doors (i.e. Bay X) is commanded. This is not supposed to happen. While we were going out of the Bay-Y door; myself [as Maintenance Supervisor] and Mechanic X were almost crushed when the Bay-Y door was commanded 'Open' [in order] to move the tug to the aircraft that had just pulled in. This is standard operations down here [at ZZZ].  We all go out to help tow our Routine Overnight (RON) aircraft into its assigned Hangar Bay. I am bringing this to your attention in hopes that this problem can be remedied before someone gets hurt. These doors weigh a lot; and if someone was to get caught between them it could be catastrophic. The discrepancy has been brought to the attention of my upper Management team; but the problem never seems to duplicate when it's checked out. I do not believe this is any one person's fault. The Hangar doors need to be fixed to avoid possible future injury. I did push Mechanic X out of the way and injury was avoided in this instance. My personnel on shift have been notified and I will again bring it up to Management in the morning when they arrive.  Recommend perhaps a regular service schedule for our Hangar doors. These doors get a ton of use every night. There may actually be a Service Schedule; I am not privy to that information. This door in Bay-X needs to be adjusted or rewired.
Reporter stated the sudden movement of Hangar Bay-X door when Bay-Y door has been commanded 'open;' is an intermittent problem and difficult for their electricians to troubleshoot. The hangar doors are approximately 18-20 FT high and move fairly quickly; side to side on steel wheels that ride on rails in the hangar floor. The sudden; unexpected movement of a hangar door raises concerns about damaging aircraft and seriously injuring Maintenance personnel. Reporter noted he was returning to work after a holiday time-off and has not heard of any repairs to the hangar doors electrical wiring at this time. Their hangars can accommodate six ERJ-145s and ERJ-170 aircraft.
A Maintenance Supervisor reports about a malfunctioning hangar door that suddenly moves when a different hangar door is commanded 'open;' endangering aircraft and serious injury to Maintenance personnel.