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B777-300 captain reported airspeed became low enough on a hand-flown visual approach to trigger a stick shaker.
| Attributes | |
| ACN | 1231537 |
| Time | |
| Date | 201501 |
| Local Time Of Day | 0001-0600 |
| Place | |
| Locale Reference | ZZZZ.Airport |
| State Reference | FO |
| Aircraft 1 | |
| Make Model Name | B777-300 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Climb |
| Flight Plan | IFR |
| Person 1 | |
| Function | Pilot Not Flying Captain |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Events | |
| Anomaly | Deviation - Procedural Published Material / Policy Deviation - Speed All Types Inflight Event / Encounter Unstabilized Approach |
Narrative:
Returned to [departure airport] as a result of passenger disturbance. Evaluated climb limit weight; runway length limit and elected to land overweight. Declared emergency with ATC. Notified company; requested police and medical. Completed normal and overweight checklists. Elected to land on longest runway. I was pm; first officer was PF. Ref speed was rather high on final due to overweight condition. On approach in VMC first officer was slightly high on glideslope and slightly fast. In an effort to reduce altitude and airspeed autopilot and auto throttles were disconnected. I was unaware of this. Speed brakes deployed. Speed rapidly decayed; and stick shaker activated. I pushed up the throttles as first officer retracted the speed brake. Stick shaker stopped; remainder of approach was stable. I failed to observe the rapidly decaying airspeed due to a minor distraction from ATC.suggestions: never a reason to disconnect [autoflight resources]; which if engaged provides protection against low speed excursions. A greater degree of monitoring by pm must occur. Avoid distractions; particularly during an overweight landing. Contributing factor on my behalf was that having VMC with runway in sight; and the situation very much under control lulled me into monitoring at a lower level than I otherwise would have. An awareness of how speed can rapidly decay with speed brakes deployed.
Original NASA ASRS Text
Title: B777-300 Captain reported airspeed became low enough on a hand-flown visual approach to trigger a stick shaker.
Narrative: Returned to [departure airport] as a result of passenger disturbance. Evaluated climb limit weight; runway length limit and elected to land overweight. Declared emergency with ATC. Notified company; requested police and medical. Completed normal and overweight checklists. Elected to land on longest runway. I was PM; FO was PF. Ref speed was rather high on final due to overweight condition. On approach in VMC FO was slightly high on glideslope and slightly fast. In an effort to reduce altitude and airspeed autopilot and auto throttles were disconnected. I was unaware of this. Speed brakes deployed. Speed rapidly decayed; and stick shaker activated. I pushed up the throttles as FO retracted the speed brake. Stick shaker stopped; remainder of approach was stable. I failed to observe the rapidly decaying airspeed due to a minor distraction from ATC.Suggestions: Never a reason to disconnect [autoflight resources]; which if engaged provides protection against low speed excursions. A greater degree of monitoring by PM must occur. Avoid distractions; particularly during an overweight landing. Contributing factor on my behalf was that having VMC with runway in sight; and the situation very much under control lulled me into monitoring at a lower level than I otherwise would have. An awareness of how speed can rapidly decay with speed brakes deployed.
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.