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A B747-400 captain reported noticing abnormally low thrust from the #2 engine on initial takeoff roll. A rejected takeoff was performed followed by a return to the gate for maintenance.
| Attributes | |
| ACN | 895452 |
| Time | |
| Date | 201006 |
| Aircraft 1 | |
| Make Model Name | B747-400 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Takeoff |
| Component | |
| Aircraft Component | Turbine Engine |
| Person 1 | |
| Function | Captain Pilot Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Experience | Flight Crew Last 90 Days 150 Flight Crew Total 21000 Flight Crew Type 2900 |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical |
Narrative:
After initial application of takeoff power it was noted that number 2 engine was not producing very much power. N2 went over 105% briefly. I aborted the takeoff at approximately 40-50 knots. The toga button was never pushed. We contacted dispatch did some trouble shooting with maintenance on the line then returned to the gate. Flight was later rescheduled for the next day then eventually canceled.
Original NASA ASRS Text
Title: A B747-400 Captain reported noticing abnormally low thrust from the #2 engine on initial takeoff roll. A rejected takeoff was performed followed by a return to the gate for maintenance.
Narrative: After initial application of takeoff power it was noted that number 2 engine was not producing very much power. N2 went over 105% briefly. I aborted the takeoff at approximately 40-50 knots. The TOGA button was never pushed. We contacted Dispatch did some trouble shooting with Maintenance on the line then returned to the gate. Flight was later rescheduled for the next day then eventually canceled.
Data retrieved from NASA's ASRS site as of April 2012 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.