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B777-200 diverted due to a failed fire detection system for the left engine.
| Attributes | |
| ACN | 846926 |
| Time | |
| Date | 200908 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | ZZZZ.Airport |
| State Reference | FO |
| Aircraft 1 | |
| Make Model Name | B777-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Cruise |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Powerplant Fire/Overheat Warning |
| Person 1 | |
| Function | Pilot Flying Captain |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Experience | Flight Crew Last 90 Days 100 Flight Crew Total 18000 Flight Crew Type 350 |
| Person 2 | |
| Function | Relief Pilot Pilot Not Flying |
| Experience | Flight Crew Last 90 Days 200 Flight Crew Total 12000 Flight Crew Type 5000 |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical |
Narrative:
Left engine fire loop 2 failed followed by failure of loop 1; leaving the fire deterrent system inoperable for the engine (EICAS message 'det fire engine left' status messages 'overheat circuit L1; fire loop 1 engine left; overheat circuit L2; fire loop 2 engine left.' we called dispatch and maintenance control and the decision made to divert. I posted relief pilot to crew rest seat to visually monitor the engine during the divert. Flight landed overweight by 29K pounds without further event.
Original NASA ASRS Text
Title: B777-200 diverted due to a failed fire detection system for the left engine.
Narrative: Left engine fire loop 2 failed followed by failure of loop 1; leaving the fire deterrent system inoperable for the engine (EICAS message 'DET FIRE ENG L' status messages 'OVERHEAT CIRCUIT L1; FIRE LOOP 1 ENG L; OVERHEAT CIRCUIT L2; FIRE LOOP 2 ENG L.' We called Dispatch and Maintenance Control and the decision made to divert. I posted Relief Pilot to crew rest seat to visually monitor the engine during the divert. Flight landed overweight by 29K pounds without further event.
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.