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Maintenance technician reported pulling and collaring wrong circuit breaker while troubleshooting a problem with the inflight entertainment system.
| Attributes | |
| ACN | 1688284 |
| Time | |
| Date | 201909 |
| Aircraft 1 | |
| Make Model Name | B767 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Parked |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Cabin Entertainment |
| Person 1 | |
| Function | Technician |
| Qualification | Maintenance Airframe Maintenance Powerplant |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe Deviation - Procedural Maintenance Deviation - Procedural Published Material / Policy |
Narrative:
Aircraft arrived at station with [inflight entertainment] inoperative. Using B767 MEL 44-xx-X; [I] attempted to trouble shoot problem by re-installing circuit breakers that were pulled and collared. [Inflight entertainment] screen would light up but still had no access to system; therefore no help. Attempted to place aircraft back in original configuration i.e. With MEL 44-xx-X applied by pulling and collaring the required circuit breakers. Was then informed after end of shift that one of the 4 required circuit breakers I had pulled and safe tied was incorrect circuit breakers - 115 vac bus r sect 4 instead of [inflight entertainment] r bus sect 4 on the same panel P32 and the same row. All others circuit breakers were correct.
Original NASA ASRS Text
Title: Maintenance Technician reported pulling and collaring wrong circuit breaker while troubleshooting a problem with the inflight entertainment system.
Narrative: Aircraft arrived at station with [inflight entertainment] inoperative. Using B767 MEL 44-XX-X; [I] attempted to trouble shoot problem by re-installing circuit breakers that were pulled and collared. [Inflight entertainment] screen would light up but still had no access to system; therefore no help. Attempted to place aircraft back in original configuration i.e. with MEL 44-XX-X applied by pulling and collaring the required circuit breakers. Was then informed after end of shift that one of the 4 required circuit breakers I had pulled and safe tied was incorrect circuit breakers - 115 vac bus r sect 4 instead of [inflight entertainment] r bus sect 4 on the same panel P32 and the same row. All others circuit breakers were correct.
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.