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B757 flight crew reported an uncommanded engine acceleration while on final approach. A missed approach was initiated; the engine was shut down; and an uneventful single engine approach was accomplished.
| Attributes | |
| ACN | 1325353 |
| Time | |
| Date | 201601 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Make Model Name | B757 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Final Approach |
| Route In Use | Other ILS Approach |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Engine Control |
| Person 1 | |
| Function | Captain Pilot Not Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Experience | Flight Crew Last 90 Days 195 Flight Crew Type 2447 |
| Person 2 | |
| Function | First Officer Pilot Flying |
| Experience | Flight Crew Last 90 Days 219 Flight Crew Type 6739 |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical |
Narrative:
First officer was flying approach when at 400 feet AGL left engine thrust increased uncommanded to maximum thrust. Auto throttle was already disconnected when event occurred; engine remained at full power until shutdown; no control possible with power lever despite attempt. First officer executed a missed approach; landing was not possible. Tower was informed of missed approach with reason why. Captain made decision at about 2500 feet to shut left engine down immediately; both pilots agreed that speed and altitude would be difficult; if not impossible to control. With power on right engine near idle; coordination was imperative. First officer added power to right engine as left engine shut down; expertly handling aircraft; leveling at 3000 feet as instructed by ATC. Departure control [was advised]. QRH engine shutdown checklist accomplished. Flight attendants were briefed. No evacuation was planned. Passengers were briefed of situation by captain. Flight landed with no further incident a short time later.
Original NASA ASRS Text
Title: B757 flight crew reported an uncommanded engine acceleration while on final approach. A missed approach was initiated; the engine was shut down; and an uneventful single engine approach was accomplished.
Narrative: FO was flying approach when at 400 feet AGL left engine thrust increased uncommanded to maximum thrust. Auto throttle was already disconnected when event occurred; engine remained at full power until shutdown; no control possible with power lever despite attempt. FO executed a missed approach; landing was not possible. Tower was informed of missed approach with reason why. Captain made decision at about 2500 feet to shut left engine down immediately; both pilots agreed that speed and altitude would be difficult; if not impossible to control. With power on right engine near idle; coordination was imperative. FO added power to right engine as left engine shut down; expertly handling aircraft; leveling at 3000 feet as instructed by ATC. Departure Control [was advised]. QRH engine shutdown checklist accomplished. Flight Attendants were briefed. No evacuation was planned. Passengers were briefed of situation by Captain. Flight landed with no further incident a short time later.
Data retrieved from NASA's ASRS site 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.