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Despite encountering significant LLWS on very short final; the flight crew of a dash 8 elected to land as the apparent severity of the encounter lessened. At touchdown a gust of wind struck the aircraft and raised the nose; activating the stick shaker. Before pitch control could be regained; the aircraft suffered a tail strike; requiring a ferry for maintenance attention.
| Attributes | |
| ACN | 986250 |
| Time | |
| Date | 201112 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | Dash 8-300 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Landing |
| Flight Plan | IFR |
| Person 1 | |
| Function | Captain Pilot Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Person 2 | |
| Function | Pilot Not Flying First Officer |
| Qualification | Flight Crew Commercial |
| Events | |
| Anomaly | Ground Event / Encounter Ground Strike - Aircraft Inflight Event / Encounter Weather / Turbulence |
Narrative:
During a landing in VMC on runway xxr; the winds were 270/21g30 and low level wind shear (LLWS) was reported. Windshear was encountered at approximately 200 ft AGL; requiring roughly 40% torque to fly through. Approach was stabilized following that and the rest of the descent was turbulent but stable. The aircraft touched down at 5 degree pitch attitude and roughly vref +5 KTS. At touchdown the stick-shaker activated and a gust of wind shook the aircraft. The nose pitched up to approximately 9 degrees. Pushing the control yoke had little effect on the nose for a few seconds; then finally it came down and the aircraft rolled-out on all three gears. At that time the 'touched runway' warning light illuminated. A tail-strike event was not sensed by the crew. Overall; the entire event felt rather gentle and the tail-strike was a surprise.we contacted maintenance control and; following an inspection; the aircraft was ferried to a maintenance base.I believe I should have been more ready for indications of gust effects on the aircraft during touchdown. Perhaps a faster and more dramatic response could have prevented damage.
Original NASA ASRS Text
Title: Despite encountering significant LLWS on very short final; the flight crew of a Dash 8 elected to land as the apparent severity of the encounter lessened. At touchdown a gust of wind struck the aircraft and raised the nose; activating the stick shaker. Before pitch control could be regained; the aircraft suffered a tail strike; requiring a ferry for maintenance attention.
Narrative: During a landing in VMC on Runway XXR; the winds were 270/21G30 and Low Level Wind Shear (LLWS) was reported. Windshear was encountered at approximately 200 FT AGL; requiring roughly 40% torque to fly through. Approach was stabilized following that and the rest of the descent was turbulent but stable. The aircraft touched down at 5 degree pitch attitude and roughly Vref +5 KTS. At touchdown the stick-shaker activated and a gust of wind shook the aircraft. The nose pitched up to approximately 9 degrees. Pushing the control yoke had little effect on the nose for a few seconds; then finally it came down and the aircraft rolled-out on all three gears. At that time the 'TOUCHED RUNWAY' warning light illuminated. A tail-strike event was not sensed by the crew. Overall; the entire event felt rather gentle and the tail-strike was a surprise.We contacted Maintenance Control and; following an inspection; the aircraft was ferried to a maintenance base.I believe I should have been more ready for indications of gust effects on the aircraft during touchdown. Perhaps a faster and more dramatic response could have prevented damage.
Data retrieved from NASA's ASRS site as of April 2012 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.