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A pilot reports experiencing transient stick shaker events on both yokes for about two seconds on a wide bodied douglas aircraft during low altitude descents with slats and speedbrakes extended.
| Attributes | |
| ACN | 1235563 |
| Time | |
| Date | 201501 |
| Local Time Of Day | 0001-0600 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Light | Night |
| Aircraft 1 | |
| Make Model Name | McDonnell Douglas Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Initial Approach |
| Component | |
| Aircraft Component | Stall Warning System |
| Person 1 | |
| Function | Captain |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical |
Narrative:
Descending through 3000 ft. On visual approach to ZZZ; at 20 KIAS above the foot; slats and speedbrakes extended. Crew received a transient stick shaker on both yokes for about two seconds. All flight parameters appeared to be well outside the stall envelope.there has been a higher than usual volume of these [stick shakers] on recent flights. They are a distractor during critical phases of flight. Would like to hear some feedback as to what was the cause. Last explanation was a slat rig problem. Aircraft system malfunction.
Original NASA ASRS Text
Title: A pilot reports experiencing transient stick shaker events on both yokes for about two seconds on a wide bodied Douglas aircraft during low altitude descents with slats and speedbrakes extended.
Narrative: Descending through 3000 ft. on visual approach to ZZZ; at 20 KIAS above the foot; slats and speedbrakes extended. Crew received a transient stick shaker on both yokes for about two seconds. All flight parameters appeared to be well outside the stall envelope.There has been a higher than usual volume of these [stick shakers] on recent flights. They are a distractor during critical phases of flight. Would like to hear some feedback as to what was the cause. Last explanation was a slat rig problem. Aircraft system malfunction.
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.