B737-800
Communication Breakdown; Situational Awareness
Deviation / Discrepancy - Procedural FAR; Deviation / Discrepancy - Procedural Published Material / Policy
General None Reported / Taken
Incorrect / Not Installed / Unavailable Part; Procedure
I was assigned to taxi one aircraft to [the hangar] and pick up one aircraft to bring back to the gate. I was about to leave [when] I was approached by a [contract] Mechanic/Repairman about an open item left on the aircraft to do. I was told that the seat belts and cushions had to be replaced and the seat disinfected at 26E and 26F. I was then shown 3 cushions and 3 sets of belts in the forward coat closet. I picked up a few cushions and belts and noted that none were new; in fact one belt was frayed. I asked the mechanic where he got these parts from; he said they were taken off of the seats that were removed from some aircraft that they were working on. I asked where the borrowed part/removed part document was. They did not know what I was talking about. I told them that these were not serviceable or usable. We proceeded to go to the back of the aircraft to 26E and 26F where there was a note taped to the seat. I told [the Contractor] that we do not work off of papers taped to the aircraft; everything has to be documented in the log book. I called my crew chief and advised him of the situation. He told me that he was aware of some of this situation; but he never told me of what was going on before I left to pick up [the other aircraft]. To protect myself I made a maintenance entry in the [logbook] noting the seat situation. I left my shift after I brought the aircraft back to the gate. I see one of my co-workers accomplished the replacement of the seat belts and cushions which were probably the ones in the coat closet. I don't think [he] was aware of where those parts came from; because I don't think my crew chief told him that those parts were not serviceable.
During routine maintenance on a B737; a Maintenance Technician was encouraged by Contract Maintenance personnel to install parts that had been removed from another aircraft without the proper documentation. After refusing; and documenting the aircraft defect; he performed aircraft taxi moves. He returned to find that the parts had been replaced by another Technician; but he is unsure of the source of the parts.