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A B777 APU auto shutdown with a fire warning and bottle discharge about one minute after the APU assumed electrical both before flight and again at the destination.
| Attributes | |
| ACN | 1024845 |
| Time | |
| Date | 201207 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | ZZZZ.Airport |
| State Reference | FO |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | B777-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Parked |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | APU Fire/Overheat Warning |
| Person 1 | |
| Function | Pilot Flying |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical Deviation - Procedural Maintenance |
Narrative:
12 minutes prior to departure. Approximately 1 minute after switching from external power to APU power; APU auto shutdown. APU fire illuminated and bottle discharged. Commanded deplaning via jet bridge and contacted ground for airfield rescue and fire fighter equipment to respond. No fire. Maintenance inspected; meled; and we departed. Repeat on switching power to external at our destination. APU fire illuminated. [I] contacted ground for airfield rescue and fire fighter equipment to respond. No fire. Maintenance took aircraft. [I was] surprised that a power spike would cause a fire warning/auto shutdown.
Original NASA ASRS Text
Title: A B777 APU auto shutdown with a fire warning and bottle discharge about one minute after the APU assumed electrical both before flight and again at the destination.
Narrative: 12 minutes prior to departure. Approximately 1 minute after switching from external power to APU power; APU auto shutdown. APU FIRE illuminated and bottle discharged. Commanded deplaning via jet bridge and contacted Ground for Airfield Rescue and Fire Fighter equipment to respond. No fire. Maintenance inspected; MELed; and we departed. Repeat on switching power to external at our destination. APU FIRE illuminated. [I] contacted Ground for Airfield Rescue and Fire Fighter equipment to respond. No fire. Maintenance took aircraft. [I was] surprised that a power spike would cause a fire warning/auto shutdown.
Data retrieved from NASA's ASRS site as of July 2013 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.