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A departing A320 experienced a major engine thrust loss at 2000 ft. The engine remained running for available thrust until after landing.
| Attributes | |
| ACN | 745568 |
| Time | |
| Date | 200707 |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | msl single value : 2000 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : zzz.tower |
| Operator | common carrier : air carrier |
| Make Model Name | A320 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : initial |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| ASRS Report | 745568 |
| Events | |
| Anomaly | aircraft equipment problem : critical |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : landed in emergency condition flight crew : declared emergency other |
| Consequence | other |
| Supplementary | |
| Problem Areas | Aircraft |
| Primary Problem | Aircraft |
Narrative:
After takeoff at approximately 2000 ft; aircraft abruptly yawed left. There was no ECAM warnings. I noticed left N1 surged from initially 60-80%; then rolled back again to approximately 50%. Right N1 was at toga approximately 94%; while left engine was at 50-60% maximum in toga. We declared an emergency due to loss of thrust and aircraft handling. We then started engine out procedure and requested return to field. I brought left thrust lever back to idle; then toga. It remained between 50-60% maximum N1. We then did a visual teardrop pattern for a wide approach to runway 28R. Landing was overweight; but uneventful. I shut down left engine after landing because tower had reported puff of smoke from left engine after landing. We then reported events to maintenance personnel who were at the gate upon arrival. Note; we did not shut down left engine due to lack of ECAM warnings and it was still producing some minimal thrust.
Original NASA ASRS Text
Title: A DEPARTING A320 EXPERIENCED A MAJOR ENGINE THRUST LOSS AT 2000 FT. THE ENGINE REMAINED RUNNING FOR AVAILABLE THRUST UNTIL AFTER LNDG.
Narrative: AFTER TKOF AT APPROX 2000 FT; ACFT ABRUPTLY YAWED L. THERE WAS NO ECAM WARNINGS. I NOTICED L N1 SURGED FROM INITIALLY 60-80%; THEN ROLLED BACK AGAIN TO APPROX 50%. R N1 WAS AT TOGA APPROX 94%; WHILE L ENG WAS AT 50-60% MAX IN TOGA. WE DECLARED AN EMER DUE TO LOSS OF THRUST AND ACFT HANDLING. WE THEN STARTED ENG OUT PROC AND REQUESTED RETURN TO FIELD. I BROUGHT L THRUST LEVER BACK TO IDLE; THEN TOGA. IT REMAINED BTWN 50-60% MAX N1. WE THEN DID A VISUAL TEARDROP PATTERN FOR A WIDE APCH TO RWY 28R. LNDG WAS OVERWT; BUT UNEVENTFUL. I SHUT DOWN L ENG AFTER LNDG BECAUSE TWR HAD RPTED PUFF OF SMOKE FROM L ENG AFTER LNDG. WE THEN RPTED EVENTS TO MAINT PERSONNEL WHO WERE AT THE GATE UPON ARR. NOTE; WE DID NOT SHUT DOWN L ENG DUE TO LACK OF ECAM WARNINGS AND IT WAS STILL PRODUCING SOME MINIMAL THRUST.
Data retrieved from NASA's ASRS site as of January 2009 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.