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A line mechanic reports damaging an oil ring while changing an APU FCU on an A320 aircraft after trouble shooting an auto-shutdown of the APU.
| Attributes | |
| ACN | 942130 |
| Time | |
| Date | 201102 |
| Local Time Of Day | 0001-0600 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Light | Night |
| Aircraft 1 | |
| Make Model Name | A320 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Parked |
| Component | |
| Aircraft Component | APU Fuel System |
| Person 1 | |
| Function | Technician |
| Qualification | Maintenance Powerplant Maintenance Airframe |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe |
Narrative:
Troubleshot auto-shutdown on APU to replace fuel control unit (FCU). Installed FCU; but had trouble engaging and alignment; which had to pull out [FCU] a few times. Oil ring [was] damaged; causing oil leak. No known factors.
Original NASA ASRS Text
Title: A Line Mechanic reports damaging an oil ring while changing an APU FCU on an A320 aircraft after trouble shooting an auto-shutdown of the APU.
Narrative: Troubleshot auto-shutdown on APU to replace Fuel Control Unit (FCU). Installed FCU; but had trouble engaging and alignment; which had to pull out [FCU] a few times. Oil ring [was] damaged; causing oil leak. No known factors.
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.