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Repair station repairman signed off a P3 aircraft fuel flow gauge fix for which he did not have that area of aircraft limitations on his repairman's certificate.
| Attributes | |
| ACN | 556642 |
| Time | |
| Date | 200208 |
| Day | Thu |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Operator | other |
| Make Model Name | Orion (P3) |
| Operating Under FAR Part | Part 91 |
| Flight Phase | ground : maintenance |
| Person 1 | |
| Affiliation | other |
| Qualification | technician : repairman technician : fcc |
| Experience | maintenance avionics : 18 maintenance repairman : 18 |
| ASRS Report | 556642 |
| Person 2 | |
| Affiliation | other |
| Function | maintenance : lead technician |
| Events | |
| Anomaly | aircraft equipment problem : less severe maintenance problem : improper documentation non adherence : published procedure non adherence : far |
| Independent Detector | other other : 2 |
| Resolutory Action | none taken : detected after the fact other |
| Consequence | other |
| Supplementary | |
| Problem Areas | Aircraft Maintenance Human Performance |
| Primary Problem | Maintenance Human Performance |
Narrative:
The flight crew squawked the fuel flow circuit breaker would trip at random. After troubleshooting the system, I removed and replaced the circuit breaker and the fuel flow power supply. All system checked normal during engine runup, I signed off the squawk and returned the aircraft to service. Later, the maintenance coordinator questioned the signoff. After discussion and examination of my repairman's certificate it was determined that my ratings of avionics and instrument did not cover the area of in aircraft repair and return to service. An a&P should have been involved in the return to service. In the future, I will be more aware of the scope of my certificate and its limitations.
Original NASA ASRS Text
Title: REPAIR STATION REPAIRMAN SIGNED OFF A P3 ACFT FUEL FLOW GAUGE FIX FOR WHICH HE DID NOT HAVE THAT AREA OF ACFT LIMITATIONS ON HIS REPAIRMAN'S CERTIFICATE.
Narrative: THE FLC SQUAWKED THE FUEL FLOW CIRCUIT BREAKER WOULD TRIP AT RANDOM. AFTER TROUBLESHOOTING THE SYS, I REMOVED AND REPLACED THE CIRCUIT BREAKER AND THE FUEL FLOW PWR SUPPLY. ALL SYS CHKED NORMAL DURING ENG RUNUP, I SIGNED OFF THE SQUAWK AND RETURNED THE ACFT TO SVC. LATER, THE MAINT COORDINATOR QUESTIONED THE SIGNOFF. AFTER DISCUSSION AND EXAMINATION OF MY REPAIRMAN'S CERTIFICATE IT WAS DETERMINED THAT MY RATINGS OF AVIONICS AND INST DID NOT COVER THE AREA OF IN ACFT REPAIR AND RETURN TO SVC. AN A&P SHOULD HAVE BEEN INVOLVED IN THE RETURN TO SERVICE. IN THE FUTURE, I WILL BE MORE AWARE OF THE SCOPE OF MY CERTIFICATE AND ITS LIMITATIONS.
Data retrieved from NASA's ASRS site as of July 2007 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.