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A B777-200 on takeoff at 200 ft, pitched down and the autothrottle began to retard on the recycled twice no help.
| Attributes | |
| ACN | 616754 |
| Time | |
| Date | 200405 |
| Day | Wed |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : lfpg.airport |
| State Reference | FO |
| Altitude | agl bound lower : 0 agl bound upper : 200 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B777-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : takeoff climbout : initial ground : takeoff roll |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : multi engine pilot : instrument pilot : commercial |
| Experience | flight time last 90 days : 240 flight time total : 15000 flight time type : 5000 |
| ASRS Report | 616754 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Events | |
| Anomaly | aircraft equipment problem : critical other anomaly other non adherence other |
| Independent Detector | aircraft equipment other aircraft equipment : a/t & flight director display other flight crewa other flight crewb |
| Resolutory Action | flight crew : overrode automation flight crew : overcame equipment problem other |
| Consequence | other other |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance Aircraft |
| Primary Problem | Aircraft |
Narrative:
On takeoff roll with normal toga on FMA's at rotation the flight director pitched down. At approximately 200 ft the throttles began to retard. Autothrottles were disengaged and flight directors cycled off then on. Autothrottles were then re-engaged and immediately began to retard, so autothrottles were again disengaged. We reselected VNAV and everything returned to normal. Autothrottles were again engaged and cleared normally.
Original NASA ASRS Text
Title: A B777-200 ON TKOF AT 200 FT, PITCHED DOWN AND THE AUTOTHROTTLE BEGAN TO RETARD ON THE RECYCLED TWICE NO HELP.
Narrative: ON TKOF ROLL WITH NORMAL TOGA ON FMA'S AT ROTATION THE FLT DIRECTOR PITCHED DOWN. AT APPROX 200 FT THE THROTTLES BEGAN TO RETARD. AUTOTHROTTLES WERE DISENGAGED AND FLT DIRECTORS CYCLED OFF THEN ON. AUTOTHROTTLES WERE THEN RE-ENGAGED AND IMMEDIATELY BEGAN TO RETARD, SO AUTOTHROTTLES WERE AGAIN DISENGAGED. WE RESELECTED VNAV AND EVERYTHING RETURNED TO NORMAL. AUTOTHROTTLES WERE AGAIN ENGAGED AND CLRED NORMALLY.
Data retrieved from NASA's ASRS site as of July 2007 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.