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A line mechanic was informed by his maintenance manager that quality assurance had discovered there was a discrepancy with the part number of the flight data recorder (fdr) he installed and signed-off. The fdr was not the correct effectivity number for the B737-400 he worked. He had relied on another mechanic to verify the part number.
| Attributes | |
| ACN | 867081 |
| Time | |
| Date | 200912 |
| Local Time Of Day | 0001-0600 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Light | Night |
| Aircraft 1 | |
| Make Model Name | B737-400 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Parked |
| Component | |
| Aircraft Component | FDR |
| Person 1 | |
| Function | Technician |
| Qualification | Maintenance Airframe Maintenance Powerplant |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe Deviation - Procedural FAR Deviation - Procedural Published Material / Policy |
Narrative:
I was working on a B737-400 at ZZZ; on a routine overnight maintenance (ron) check. Myself and two other mechanics. We had several tasks as well as an MEL for a cabin pressurization problem. One mechanic had gone to retrieve parts that were pre-drawn from stores. Mechanic came back with a flight data recorder (fdr). Reading over the job for that task; there was some confusion over some of the steps. I went on with one of the mechanics to complete the other tasks on the plane; due to aircraft had a early departure. At the end of the night I was told by one of the mechanics I was with; that the (part) was the right one; so I installed it and stamped-off the job card and turned over the paperwork to be entered into aircraft parts history computer.I was notified by maintenance manager that quality assurance (qa) had discovered there was a discrepancy with effective parts number installed. I believe it was caused by a lack of communication. The job card was confusing and I should have verified the information myself. Also we were pressed for time.ZZZ1 was informed by maintenance control to verify the part number of the fdr installed and if not correct; to replace. They found incorrect part number was installed and installed correct one. I should use all resources to clarify any confusions about paperwork and verify the information myself.
Original NASA ASRS Text
Title: A Line Mechanic was informed by his Maintenance Manager that Quality Assurance had discovered there was a discrepancy with the Part Number of the Flight Data Recorder (FDR) he installed and Signed-off. The FDR was not the correct Effectivity number for the B737-400 he worked. He had relied on another Mechanic to verify the Part Number.
Narrative: I was working on a B737-400 at ZZZ; on a Routine Overnight Maintenance (RON) check. Myself and two other mechanics. We had several tasks as well as an MEL for a Cabin Pressurization problem. One Mechanic had gone to retrieve parts that were pre-drawn from stores. Mechanic came back with a Flight Data Recorder (FDR). Reading over the Job for that task; there was some confusion over some of the steps. I went on with one of the mechanics to complete the other tasks on the plane; due to aircraft had a early departure. At the end of the night I was told by one of the Mechanics I was with; that the (part) was the right one; so I installed it and Stamped-off the job card and turned over the paperwork to be entered into aircraft parts history computer.I was notified by Maintenance Manager that Quality Assurance (QA) had discovered there was a discrepancy with Effective Parts Number installed. I believe it was caused by a lack of communication. The Job Card was confusing and I should have verified the information myself. Also we were pressed for time.ZZZ1 was informed by Maintenance Control to verify the Part Number of the FDR installed and if not correct; to replace. They found incorrect Part Number was installed and installed correct one. I should use all resources to clarify any confusions about paperwork and verify the information myself.
Data retrieved from NASA's ASRS site as of April 2012 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.