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A B737-300 in cruise at FL350 declared an emergency and diverted due to left engine overheat light illuminated. Engine shutdown. Bottles discharged.
| Attributes | |
| ACN | 641697 |
| Time | |
| Date | 200412 |
| Day | Thu |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | msl single value : 35000 |
| Aircraft 1 | |
| Controlling Facilities | artcc : zzz.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | B737-300 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Experience | flight time last 90 days : 240 flight time total : 4500 flight time type : 600 |
| ASRS Report | 641697 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Experience | flight time last 90 days : 182 flight time total : 15000 flight time type : 6000 |
| ASRS Report | 641701 |
| Events | |
| Anomaly | aircraft equipment problem : critical |
| Independent Detector | aircraft equipment other aircraft equipment : ovht warning light other flight crewa other flight crewb |
| Resolutory Action | controller : issued new clearance flight crew : declared emergency flight crew : diverted to another airport |
| Consequence | other other |
| Supplementary | |
| Problem Areas | Aircraft |
| Primary Problem | Aircraft |
Narrative:
Normal cruise, FL350, overheat detection light came on. #1 overheat light was illuminated. Complied with checklist, reduced power and descended. Light went out. After consulting with maintenance and increasing power on that engine, the light came back on and did not go out. We then complied with engine fire/severe damage and shut the engine down. After several mins and after discharging both bottles, the light went out. Landed in ZZZ single engine, otherwise uneventful. Callback conversation with reporter revealed the following information: the reporter noted the logbook had an entry for 'B' fire warning loop on #1 engine deferred as inoperative. The reporter does not have any information on the cause of the overheat and details on the fix.
Original NASA ASRS Text
Title: A B737-300 IN CRUISE AT FL350 DECLARED AN EMER AND DIVERTED DUE TO L ENG OVERHEAT LIGHT ILLUMINATED. ENG SHUTDOWN. BOTTLES DISCHARGED.
Narrative: NORMAL CRUISE, FL350, OVERHEAT DETECTION LIGHT CAME ON. #1 OVERHEAT LIGHT WAS ILLUMINATED. COMPLIED WITH CHKLIST, REDUCED PWR AND DSNDED. LIGHT WENT OUT. AFTER CONSULTING WITH MAINT AND INCREASING PWR ON THAT ENG, THE LIGHT CAME BACK ON AND DID NOT GO OUT. WE THEN COMPLIED WITH ENG FIRE/SEVERE DAMAGE AND SHUT THE ENG DOWN. AFTER SEVERAL MINS AND AFTER DISCHARGING BOTH BOTTLES, THE LIGHT WENT OUT. LANDED IN ZZZ SINGLE ENG, OTHERWISE UNEVENTFUL. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR NOTED THE LOGBOOK HAD AN ENTRY FOR 'B' FIRE WARNING LOOP ON #1 ENG DEFERRED AS INOP. THE RPTR DOES NOT HAVE ANY INFO ON THE CAUSE OF THE OVERHEAT AND DETAILS ON THE FIX.
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.