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An airbus 321 was dispatched in non compliance after a scheduled test of the tank air relief valve with the improper source of power on the airplane.
| Attributes | |
| ACN | 550003 |
| Time | |
| Date | 200206 |
| Day | Sun |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | A321 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : maintenance |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | oversight : supervisor |
| Qualification | technician : powerplant technician : airframe |
| Experience | maintenance lead technician : 13 maintenance technician : 24 |
| ASRS Report | 550003 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | maintenance : lead technician |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper maintenance maintenance problem : improper documentation |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other |
| Factors | |
| Maintenance | contributing factor : schedule pressure performance deficiency : testing performance deficiency : scheduled maintenance performance deficiency : logbook entry |
| Supplementary | |
| Problem Areas | Maintenance Human Performance Chart Or Publication Aircraft |
| Primary Problem | Maintenance Human Performance |
Narrative:
During a scheduled test of the air relief valve , the lead communicated to me (supervisor) that the test was 'good.' I then closed the log item and overnight check in the logbook. 2 days later, I found out that the exact parameters where not met to accomplish this test. The APU was used as the power source -- ground power was the required source. I believe that the miscom was due to end of shift paperwork, and my desire to go home. Only electric load was to power the cockpit and the cabin lights. This is a minimal load for the APU. I feel that the results of the test were valid.
Original NASA ASRS Text
Title: AN AIRBUS 321 WAS DISPATCHED IN NON COMPLIANCE AFTER A SCHEDULED TEST OF THE TANK AIR RELIEF VALVE WITH THE IMPROPER SOURCE OF PWR ON THE AIRPLANE.
Narrative: DURING A SCHEDULED TEST OF THE AIR RELIEF VALVE , THE LEAD COMMUNICATED TO ME (SUPVR) THAT THE TEST WAS 'GOOD.' I THEN CLOSED THE LOG ITEM AND OVERNIGHT CHK IN THE LOGBOOK. 2 DAYS LATER, I FOUND OUT THAT THE EXACT PARAMETERS WHERE NOT MET TO ACCOMPLISH THIS TEST. THE APU WAS USED AS THE PWR SOURCE -- GND PWR WAS THE REQUIRED SOURCE. I BELIEVE THAT THE MISCOM WAS DUE TO END OF SHIFT PAPERWORK, AND MY DESIRE TO GO HOME. ONLY ELECTRIC LOAD WAS TO PWR THE COCKPIT AND THE CABIN LIGHTS. THIS IS A MINIMAL LOAD FOR THE APU. I FEEL THAT THE RESULTS OF THE TEST WERE VALID.
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.