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Captain of a 3 engine widebody transport ordered the first officer to continue takeoff after observing an engine fire overheat warning during the takeoff roll near V1 speed. After airborne and running appropriate checklists, the captain decided to continue to destination which was all the way across the united states. At destination the cause of the warning was due to a ruptured bleed air duct!
| Attributes | |
| ACN | 340528 |
| Time | |
| Date | 199607 |
| Day | Mon |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : lax |
| State Reference | CA |
| Altitude | agl bound lower : 0 agl bound upper : 3000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tracon : lax tower : lax tower : vny |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other |
| Flight Phase | climbout : initial climbout : intermediate altitude climbout : takeoff |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 240 flight time total : 16000 flight time type : 1540 |
| ASRS Report | 340528 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial |
| Events | |
| Anomaly | aircraft equipment problem : critical other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | flight crew : overcame equipment problem other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
| Air Traffic Incident | other |
Narrative:
Engine #1 fire light and bell at 120 KTS on takeoff roll, I told flying copilot to 'continue.' as soon as #1 throttle was retarded below takeoff power during engine fail/fire checklist, the fire light extinguished and we noted that the engine #1 loop 'B' light on the fire detection panel was illuminated. We moved the engine #1 loop selector from 'both' to 'a' and got a good test, so continued under assumption we'd had a false warning. Approaching top of climb the #1 pneumatic supply 'temperature hi' light illuminated. We turned off engine #1 pneumatic supply in accordance with checklist. All engine operating parameters were within limits although engine #1 egt was higher and N1 lower than engines #2 and #3. Upon arrival at ewr found loose bleed air duct to be the culprit.
Original NASA ASRS Text
Title: CAPT OF A 3 ENG WDB ORDERED THE FO TO CONTINUE TKOF AFTER OBSERVING AN ENG FIRE OVERHEAT WARNING DURING THE TKOF ROLL NEAR V1 SPD. AFTER AIRBORNE AND RUNNING APPROPRIATE CHKLISTS, THE CAPT DECIDED TO CONTINUE TO DEST WHICH WAS ALL THE WAY ACROSS THE UNITED STATES. AT DEST THE CAUSE OF THE WARNING WAS DUE TO A RUPTURED BLEED AIR DUCT!
Narrative: ENG #1 FIRE LIGHT AND BELL AT 120 KTS ON TKOF ROLL, I TOLD FLYING COPLT TO 'CONTINUE.' AS SOON AS #1 THROTTLE WAS RETARDED BELOW TKOF PWR DURING ENG FAIL/FIRE CHKLIST, THE FIRE LIGHT EXTINGUISHED AND WE NOTED THAT THE ENG #1 LOOP 'B' LIGHT ON THE FIRE DETECTION PANEL WAS ILLUMINATED. WE MOVED THE ENG #1 LOOP SELECTOR FROM 'BOTH' TO 'A' AND GOT A GOOD TEST, SO CONTINUED UNDER ASSUMPTION WE'D HAD A FALSE WARNING. APCHING TOP OF CLB THE #1 PNEUMATIC SUPPLY 'TEMP HI' LIGHT ILLUMINATED. WE TURNED OFF ENG #1 PNEUMATIC SUPPLY IN ACCORDANCE WITH CHKLIST. ALL ENG OPERATING PARAMETERS WERE WITHIN LIMITS ALTHOUGH ENG #1 EGT WAS HIGHER AND N1 LOWER THAN ENGS #2 AND #3. UPON ARR AT EWR FOUND LOOSE BLEED AIR DUCT TO BE THE CULPRIT.
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.