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B737 flight crew reported the engine rollbacked to approximately 35% N1 during the initial climb; resulting in an immediate return to the departure airport.
| Attributes | |
| ACN | 1699806 |
| Time | |
| Date | 201911 |
| Local Time Of Day | 0001-0600 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Make Model Name | B737-800 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Climb |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Turbine Engine |
| Person 1 | |
| Function | Captain Pilot Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) Flight Crew Multiengine Flight Crew Instrument |
| Experience | Flight Crew Total 19000 |
| Person 2 | |
| Function | First Officer Pilot Not Flying |
| Qualification | Flight Crew Multiengine Flight Crew Air Transport Pilot (ATP) Flight Crew Instrument |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical |
Narrative:
Took off from runway xxr at ZZZ. During climbout; passing approximately 4;000 feet; the number 2 engine power reduced to approximately 35% N1. Tried closing and advancing the number 2 power lever with no effect. Advised ATC and requested priority handling. Turning right to the west; realized that we were in a good position for an almost straight in approach to runway xyr. Wind was light and almost a direct crosswind to the parallel runways at ZZZ; so I requested landing on xyr. No unusual engine indications were noted other than the lack of thrust. Left the engine running to maintain electrical and hydraulic systems. Landed normally with 15 degrees of flaps.crff (crash rescue fire fighting) inspection showed no leaks or other problems so we taxied to the gate. The landing was made at less than the max landing weight. On the ground; the engine idle remained at 30% N1. Probably could have slowed down and more thoroughly run the checklists but position and conditions were conducive to an immediate landing. Other than the lack of thrust the aircraft operated normally.
Original NASA ASRS Text
Title: B737 flight crew reported the engine rollbacked to approximately 35% N1 during the initial climb; resulting in an immediate return to the departure airport.
Narrative: Took off from Runway XXR at ZZZ. During climbout; passing approximately 4;000 feet; the Number 2 engine power reduced to approximately 35% N1. Tried closing and advancing the Number 2 power lever with no effect. Advised ATC and requested priority handling. Turning right to the west; realized that we were in a good position for an almost straight in approach to Runway XYR. Wind was light and almost a direct crosswind to the parallel runways at ZZZ; so I requested landing on XYR. No unusual engine indications were noted other than the lack of thrust. Left the engine running to maintain electrical and hydraulic systems. Landed normally with 15 degrees of flaps.CRFF (Crash Rescue Fire Fighting) inspection showed no leaks or other problems so we taxied to the gate. The landing was made at less than the max landing weight. On the ground; the engine idle remained at 30% N1. Probably could have slowed down and more thoroughly run the checklists but position and conditions were conducive to an immediate landing. Other than the lack of thrust the aircraft operated normally.
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.