A Maintenance Manager and Maintenance Supervisor report about an A319 aircraft that may have flown for several days with an Aft Flight Attendant's jumpseat O2 Oxygen mask panel taped over; after a C-Check Oxygen Mask Drop Check had been accomplished.
Synopsis
A Maintenance Manager and Maintenance Supervisor report about an A319 aircraft that may have flown for several days with an Aft Flight Attendant's jumpseat O2 Oxygen mask panel taped over; after a C-Check Oxygen Mask Drop Check had been accomplished.
Narrative
I am a Maintenance Supervisor in ZZZ1 and was called by ZZZ Maintenance Control about Aircraft X; an A319 aircraft that had an O2 Oxygen [Mask] Drop Check the night before in ZZZ. A Maintenance Supervisor in ZZZ called me [at ZZZ1] the following morning; to ask if we could look at a panel that was taped up. I thought it was a 'Blanking' plate. He told me that Aircraft X [would be] spending the night in ZZZ2. I wrote on our information board to let Dayshift know. Later in the morning; Mr. Y [here in ZZZ1]; answered the phone and Maintenance Control in ZZZ [informed him] they had changed the Tail Number to Aircraft X; that had spent the night in ZZZ3. They had [originally] told me it was Aircraft Y. I had told Mr. Z; [also in ZZZ1 with me]; that the flight information was on our information board when I saw him in the morning. I was told that Aircraft X had flown several days with the [Flight Attendant jumpseat] O2 mask box taped up. Tape should have been removed prior to flight. [This was] improper maintenance.
Second reporter narrative
Company Mechanic; (Mechanic X) was working an Oxygen Mask Drop Check on an A319 aircraft C-check in ZZZ. He called me; the Maintenance Manager in ZZZ; about XA:00 pm and stated that he was not sure if he had removed the tape from the Aft Flight Attendant O2 Mask panel at the Flight Attendant jumpseat. He stated that he was having trouble with the O2 panel latch and would get to it later and moved onto his next jobcard in the cockpit. I checked our flights and saw that the aircraft would be back at another local airport (ZZZ3) for the overnight. I called our Maintenance Supervisor [here in ZZZ]; to call the Maintenance Supervisor in ZZZ1 to tell him to have the Flight Attendant O2 panel checked when it got to ZZZ1 in the morning. There were no calls for Maintenance at the gates in ZZZ or in ZZZ1 the following morning. I suspect that another Mechanic [also in ZZZ]; came along behind Mechanic X and closed the door and removed the tape.Mechanic working this jobcard should have taken the time to document the trouble he was having with the door and written a Non-Routine write-up and get his Lead Mechanic involved for assistance. ZZZ Maintenance Supervisor called the ZZZ1 Line Maintenance office that evening to have a Mechanic check the O2 door in the morning. We will have a crew briefing outlining this type of problem and what should be done in the future.
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Source: NASA Aviation Safety Reporting System (public domain). Reports are voluntary submissions and are not verified by NASA.