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Aircraft maintenance technician reported replacing incorrect aircraft component during maintenance visit.
| Attributes | |
| ACN | 1653228 |
| Time | |
| Date | 201905 |
| Local Time Of Day | 0001-0600 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Light | Night |
| Aircraft 1 | |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Parked |
| Flight Plan | IFR |
| Person 1 | |
| Function | Technician |
| Qualification | Maintenance Powerplant Maintenance Airframe |
| Events | |
| Anomaly | Deviation - Procedural Maintenance Deviation - Procedural Published Material / Policy |
Narrative:
ZZZ line maintenance mechanics were assigned aircraft X. Flight XXXX was delayed. Lead [mechanic] provided us the information of work. We were to accomplish #1 engine fuel filter replacement. [Lead mechanic] provided us the engine fuel filter. We never realized that we incorrectly replaced the wrong filter. We removed and replaced the #1 engine fuel filter instead of the APU filter terminating monitor 29-xx-X-XXXX log required.trusting our lead; whom supplied us the #1 engine filter we never checked or identified the correct job assignment that was required to clear the monitor. APU filter was never changed by [either mechanics]. We completed and signed off #1 engine fuel filter right/right (remove and replace) instead.by not following paperwork assignment of replacing APU filter; we mistakenly followed lead's assignment to change #1 engine filter.
Original NASA ASRS Text
Title: Aircraft Maintenance Technician reported replacing incorrect aircraft component during maintenance visit.
Narrative: ZZZ Line Maintenance mechanics were assigned Aircraft X. Flight XXXX was delayed. Lead [Mechanic] provided us the information of work. We were to accomplish #1 engine fuel filter replacement. [Lead Mechanic] provided us the engine fuel filter. We never realized that we incorrectly replaced the wrong filter. We removed and replaced the #1 engine fuel filter instead of the APU filter terminating monitor 29-XX-X-XXXX log required.Trusting our Lead; whom supplied us the #1 ENG filter we never checked or identified the correct job assignment that was required to clear the monitor. APU filter was never changed by [either mechanics]. We completed and signed off #1 ENG fuel filter R/R (Remove and Replace) instead.By not following paperwork assignment of replacing APU filter; we mistakenly followed Lead's assignment to change #1 ENG filter.
Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.