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Originally cleared runway heading to 5;000 ft. From the approximately 1;300 ft. High runway; the lightly loaded B757-200 was cleared for takeoff and directed to maintain 3;000 ft. For traffic departing a crossing runway. The rapid climb rate outpaced the flight crew's programming and exceeded the pilot flying's (PF) HUD comfort level. In effect; they climbed beyond their cleared altitude and exceeded 250 knots before disconnecting the auto-throttles and recovering to their cleared state.
| Attributes | |
| ACN | 1223371 |
| Time | |
| Date | 201412 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | ZZZ |
| State Reference | US |
| Environment | |
| Flight Conditions | Marginal |
| Aircraft 1 | |
| Make Model Name | B757-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Climb |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Bombardier/Canadair Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Climb |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Heads-Up Display |
| Person 1 | |
| Function | Pilot Not Flying First Officer |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Person 2 | |
| Function | Pilot Flying Captain |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Events | |
| Anomaly | Deviation - Altitude Overshoot Deviation - Procedural Clearance |
Narrative:
We were cleared for takeoff then given a lower altitude of 3;000 feet for departure for an aircraft departing another runway. We did a flch takeoff at the level off we went through 3;000 feet to 3;200 feet briefly and corrected immediately to 3;000 feet. On the level off the auto-throttles failed to adjust power to maintain 250 knots and we accelerated to 270 knots before a pilot correction was made. We only had 7000 lbs. [Payload] so the aircraft performance was much better than normal. I believe the aircraft went into alt capture before we could engage flch mode. Light weight led to increased performance and the automation not being able to keep up with the aircraft. Also low altitude level offs could be avoided for transport aircraft. A technique could also to be used to not use auto-throttles for low altitude level offs.
Original NASA ASRS Text
Title: Originally cleared runway heading to 5;000 ft. from the approximately 1;300 ft. high runway; the lightly loaded B757-200 was cleared for takeoff and directed to maintain 3;000 ft. for traffic departing a crossing runway. The rapid climb rate outpaced the flight crew's programming and exceeded the pilot flying's (PF) HUD comfort level. In effect; they climbed beyond their cleared altitude and exceeded 250 knots before disconnecting the auto-throttles and recovering to their cleared state.
Narrative: We were cleared for takeoff then given a lower altitude of 3;000 feet for departure for an aircraft departing another runway. We did a FLCH takeoff at the level off we went through 3;000 feet to 3;200 feet briefly and corrected immediately to 3;000 feet. On the level off the auto-throttles failed to adjust power to maintain 250 knots and we accelerated to 270 knots before a pilot correction was made. We only had 7000 lbs. [payload] so the aircraft performance was much better than normal. I believe the aircraft went into alt capture before we could engage FLCH mode. Light weight led to increased performance and the automation not being able to keep up with the aircraft. Also low altitude level offs could be avoided for transport aircraft. A technique could also to be used to not use auto-throttles for low altitude level offs.
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.