Maintenance Airframe; Maintenance Powerplant
Time Pressure; Other / Unknown
Aircraft Equipment Problem Less Severe; Deviation / Discrepancy - Procedural Published Material / Policy; Deviation / Discrepancy - Procedural Maintenance; Flight Deck / Cabin / Aircraft Event Smoke / Fire / Fumes / Odor
General None Reported / Taken
Human Factors; Aircraft
On Date aircraft XXX had fumes/smoke in the cockpit smell noticed by the flight crew.The event occurred due to a razor blade that was left inside CBP1 possibly during a visit to ZZZ for the ADS-B modification in the middle of month of 2019 and I could have possibly left it there during the installation of breaker CBP1-XX during the mod. Due to the length of time between when possibly leaving a razor blade and when it was discovered I cannot recall whether or not I used a razor blade in the area. But; typically; when I do wiring work I don't use razor blades to cut tape or remove wiring insulation. As we usually have the equipment to remove fiberglass tape (a wire spoon and flush cutters or just peeling it off by hand;) and wiring insulation (standard wire strippers and the twisted pair stripping tool). Reflecting on the experience I would hope that even during the crunch time of the push to finish the ADS-B modifications on all our aircraft before the deadline that I would have continued to practice strict FOD control.My suggestion is to not use lose razor blades when doing work on wires unless absolutely necessary; and to practice strict FOD control and to perform detailed FOD inspections before every panel close-up.
On date the crew of Aircraft X reported fumes in the cockpit. An AMT discovered a loose razor blade located behind circuit breaker panel 1. Records indicate that panel had work done inside on date. This event has been brought to my attention due to my participation in ADSB mod which the work was completed. Due to the length of time from when the work was accomplished until now; unfortunately I can not provide details on exact situation. I can say that I was the RII In the process and I understand the seriousness of the situation and would not have allowed a loose razor blade to be left in the circuit breaker panel. I did not see a razor blade in the panel when it was closed. AMT found razor blade after fumes noted in cockpit. The event was caused by a Razor blade left in CBP-1.
Air Carrier Lead Technicians reported being notified that they may have inadvertently contributed to a fume event by leaving FOD on an aircraft they repaired.