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Md-11 flight crew reports rejecting a takeoff at 110 KTS for a number three engine fire warning. The aircraft had a history of false and incomplete fire warnings. Autobrakes did not disengage with manual braking as expected requiring autobrake switch to be selected off; which contributed to hot brakes.
| Attributes | |
| ACN | 1109141 |
| Time | |
| Date | 201308 |
| Local Time Of Day | 0001-0600 |
| Place | |
| Locale Reference | ZZZZ.Airport |
| State Reference | FO |
| Environment | |
| Flight Conditions | VMC |
| Aircraft 1 | |
| Make Model Name | MD-11 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Takeoff |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Powerplant Fire/Overheat Warning |
| Person 1 | |
| Function | Captain Pilot Flying |
| Person 2 | |
| Function | First Officer |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical |
Narrative:
On takeoff roll after 80 KT call received red master warning light and level 3 engine 3 fire alert. Executed a reject; approximatelt 110 KTS with power reduction to idle; alerts went away. Taxi-in received brake overheat level 2 alert due to the reject. Previous writeup no. 3 engine fire alert in cruise flight. Steady rain; required use of max power. No fire bell with level 3 alert. I assumed it was an indication problem but not going to continue takeoff with alert indication. Somewhat surprised at the intensity of max brake with application of reverse. I normally deactivate autobrake with application of manual braking. Max brake did not release with manual brake application. Had to select autobrake switch off (instead of spoiler handle option). I believe delay in getting out of max braking lead to brake overheat. Informed tower returning to blocks due to malfunction and tower kept asking questions. Questions were a distraction. Wanted to evaluate aircraft and taxi back to ramp and tower kept asking questions.
Original NASA ASRS Text
Title: MD-11 flight crew reports rejecting a takeoff at 110 KTS for a number three engine fire warning. The aircraft had a history of false and incomplete fire warnings. Autobrakes did not disengage with manual braking as expected requiring autobrake switch to be selected off; which contributed to hot brakes.
Narrative: On takeoff roll after 80 KT call received red Master Warning Light and Level 3 Engine 3 fire alert. Executed a reject; approximatelt 110 KTS with power reduction to idle; alerts went away. Taxi-in received brake overheat Level 2 alert due to the reject. Previous writeup no. 3 engine fire alert in cruise flight. Steady rain; required use of max power. No fire bell with Level 3 alert. I assumed it was an indication problem but not going to continue takeoff with alert indication. Somewhat surprised at the intensity of max brake with application of reverse. I normally deactivate autobrake with application of manual braking. Max brake did not release with manual brake application. Had to select autobrake switch off (instead of spoiler handle option). I believe delay in getting out of Max Braking lead to brake overheat. Informed Tower returning to blocks due to malfunction and Tower kept asking questions. Questions were a distraction. Wanted to evaluate aircraft and taxi back to ramp and Tower kept asking questions.
Data retrieved from NASA's ASRS site as of July 2013 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.