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Air carrier has engine fire light and bell sound intermittently. Checklist accomplished. Shut down a detector loop. Light and bell activated again in B detector loop. Shut down engine, declared emergency.
| Attributes | |
| ACN | 146919 |
| Time | |
| Date | 199005 |
| Day | Tue |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : lal |
| State Reference | FL |
| Altitude | msl bound lower : 20000 msl bound upper : 20000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zma |
| Operator | common carrier : air carrier |
| Make Model Name | Large Transport, Low Wing, 3 Turbojet Eng |
| Navigation In Use | Other |
| Flight Phase | climbout : intermediate altitude |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : instrument pilot : flight engineer pilot : cfi pilot : atp pilot : commercial |
| Experience | flight time last 90 days : 210 flight time total : 17500 flight time type : 10000 |
| ASRS Report | 146919 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp pilot : instrument pilot : commercial |
| Events | |
| Anomaly | aircraft equipment problem : critical other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : declared emergency other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
Narrative:
Takeoff from mia to cvg via J73, then given direct lal. About 20 mi south of lal VOR, the engine #1 fire warning light and bell sounded intermittently. The abnormal checklist was accomplished and #1 a detector loop was found to be (tested) intermittent. B loop tested ok. Shortly after passing lal VOR, #1 engine fire light and bell sounded again intermittently, but this time in B detector loop. I had to assume a fire. Shut down #1 engine, fired an extinguishing bottle into it. The alarm stopped. I declared an emergency, called dispatch in atl, had tpa in sight and landed there. Supplemental information from acn 147101: problem was electrical in a fire detector box, no actual fire.
Original NASA ASRS Text
Title: ACR HAS ENGINE FIRE LIGHT AND BELL SOUND INTERMITTENTLY. CHECKLIST ACCOMPLISHED. SHUT DOWN A DETECTOR LOOP. LIGHT AND BELL ACTIVATED AGAIN IN B DETECTOR LOOP. SHUT DOWN ENG, DECLARED EMER.
Narrative: TKOF FROM MIA TO CVG VIA J73, THEN GIVEN DIRECT LAL. ABOUT 20 MI S OF LAL VOR, THE ENG #1 FIRE WARNING LIGHT AND BELL SOUNDED INTERMITTENTLY. THE ABNORMAL CHKLIST WAS ACCOMPLISHED AND #1 A DETECTOR LOOP WAS FOUND TO BE (TESTED) INTERMITTENT. B LOOP TESTED OK. SHORTLY AFTER PASSING LAL VOR, #1 ENG FIRE LIGHT AND BELL SOUNDED AGAIN INTERMITTENTLY, BUT THIS TIME IN B DETECTOR LOOP. I HAD TO ASSUME A FIRE. SHUT DOWN #1 ENG, FIRED AN EXTINGUISHING BOTTLE INTO IT. THE ALARM STOPPED. I DECLARED AN EMER, CALLED DISPATCH IN ATL, HAD TPA IN SIGHT AND LANDED THERE. SUPPLEMENTAL INFO FROM ACN 147101: PROB WAS ELECTRICAL IN A FIRE DETECTOR BOX, NO ACTUAL FIRE.
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.