Pilot Debrief

PIPER PA 32RT-300T near Lubbock, TX — 2015-02-20

Final reportCEN15LA149
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Date
2015-02-20
Location
Lubbock, TX, USA
Airport
F82
Aircraft
PIPER PA 32RT-300T
Registration
N22267
Category
Airplane
Highest injury
None
Fatalities
0
Phase of flight
Takeoff roll

Probable cause

The pilot's delayed decision to abort the takeoff after the airplane did not lift off as expected due to an inaccurate airspeed indication and tailwind condition, which resulted in a subsequent runway overrun.

NTSB narrative

The private pilot was conducting a short-field takeoff from the private, 3,500-ft-long paved runway. He reported that, upon reaching 80 knots indicated airspeed, he applied aft control yoke pressure to rotate; however, the airplane did not respond to his control input. The pilot attempted to rotate a second time using both hands on the yoke, but the airplane still did not rotate, and he aborted the takeoff as the airplane crossed the runway midpoint. The pilot was unable to stop the airplane before it overran the end of the runway into a plowed field, where the landing gear collapsed. Postaccident examination did not identify any flight control system anomalies that would have precluded normal airplane operation; however, testing of the airplane's airspeed indicator revealed that it consistently read 5 knots higher than the calibrated test equipment. Consequently, the pilot likely attempted to rotate at an actual airspeed that was 5 knots lower than intended. The pilot and his passenger both reported that, shortly before takeoff, they heard someone broadcast on the airport frequency that the local surface wind was from the west-southwest at 4 knots with 14 knots gusts; however, a postaccident review of available weather data indicated the prevailing surface wind was likely from the west-northwest between 9 to 15 knots with gusts as high as 23 knots. Wind from this direction would have resulted in tailwind component of 4-8 knots, which would have increased the airplane's takeoff distance and the ground speed required to achieve liftoff. It is likely that the combination of the inaccurate airspeed indication and the tailwind component during takeoff resulted in the airplane's inability to achieve a normal takeoff rotation at the expected point on the runway.

Analysis

Primary failure mode
Loss of control
First missed decision gate
Pilot could have aborted takeoff earlier after previous abnormal takeoffs.

NTSB coding

Evidence available

  • 7 docket documents
View NTSB final reportView NTSB docket

Docket documents7

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