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False fire warning on engine #1, but flight crew didn't know it was false until after landing. Flight diverted to nearest suitable airport.
| Attributes | |
| ACN | 327004 |
| Time | |
| Date | 199601 |
| Day | Thu |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : sbbs |
| State Reference | FO |
| Altitude | msl bound lower : 33000 msl bound upper : 33000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B747-100 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise other |
| Route In Use | enroute airway : sbbs |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 160 flight time total : 16000 flight time type : 4000 |
| ASRS Report | 327004 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 160 flight time total : 18000 flight time type : 3500 |
| ASRS Report | 327005 |
| Events | |
| Anomaly | aircraft equipment problem : critical |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | flight crew : declared emergency none taken : unable |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
Narrative:
Fire warning #1 engine. Diverted to nearest suitable airport. No fire, turned out to be an electrical problem in fire warning system.
Original NASA ASRS Text
Title: FALSE FIRE WARNING ON ENG #1, BUT FLC DIDN'T KNOW IT WAS FALSE UNTIL AFTER LNDG. FLT DIVERTED TO NEAREST SUITABLE ARPT.
Narrative: FIRE WARNING #1 ENG. DIVERTED TO NEAREST SUITABLE ARPT. NO FIRE, TURNED OUT TO BE AN ELECTRICAL PROB IN FIRE WARNING SYS.
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.