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After takeoff; crj crew elected to leave the power in the flight level change mode due to departure-procedure altitude restrictions. Upon level off at cruise altitude; crew realized that they had never moved the thrust levers from the take off go around detent into the climb detent. This allowed both engines to remain in flight level change mode for approximately 18 minutes; exceeding the engine limitation of five minutes for flight level change mode operation.
| Attributes | |
| ACN | 1316368 |
| Time | |
| Date | 201512 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Flight Conditions | VMC |
| Aircraft 1 | |
| Make Model Name | Regional Jet 700 ER/LR (CRJ700) |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Climb |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Turbine Engine |
| Person 1 | |
| Function | Pilot Flying First Officer |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Person 2 | |
| Function | Captain Pilot Not Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Experience | Flight Crew Total 11396 |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe Deviation - Procedural Published Material / Policy |
Narrative:
During takeoff and climb out on departure; flight level change (flx) thrust was left engaged for approximately 18 minutes; exceeding 5 minute limitation. On takeoff; I left flx thrust in (as we briefed prior to departure) to ensure compliance with two altitude restrictions on the departure. We were heavy and the temperature was isa +10. Just prior to the second altitude-restricted waypoint ATC cleared us direct to a later fix. After proceeding as directed; we forgot to reduce the thrust from flx to climb (climb) mode. I detected the mistake when leveling off and reduced the thrust to cruise (crz).suggest better monitoring of the thrust mode and timing; and also better adherence to the after takeoff checklist would help reduce the chance of recurrence of this event.
Original NASA ASRS Text
Title: After takeoff; CRJ crew elected to leave the power in the Flight Level Change mode due to departure-procedure altitude restrictions. Upon level off at cruise altitude; crew realized that they had never moved the thrust levers from the Take Off Go Around detent into the CLIMB detent. This allowed both engines to remain in Flight Level Change mode for approximately 18 minutes; exceeding the engine limitation of five minutes for Flight Level Change mode operation.
Narrative: During takeoff and climb out on departure; Flight Level Change (FLX) thrust was left engaged for approximately 18 minutes; exceeding 5 minute limitation. On takeoff; I left FLX thrust in (as we briefed prior to departure) to ensure compliance with two altitude restrictions on the departure. We were heavy and the temperature was ISA +10. Just prior to the second altitude-restricted waypoint ATC cleared us direct to a later fix. After proceeding as directed; we forgot to reduce the thrust from FLX to Climb (CLB) mode. I detected the mistake when leveling off and reduced the thrust to Cruise (CRZ).Suggest better monitoring of the thrust mode and timing; and also better adherence to the After Takeoff Checklist would help reduce the chance of recurrence of this event.
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.