Pilot Debrief

PIPER PA28 near Cottonwood, AZ — 2019-08-25

Final reportGAA19CA511
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Date
2019-08-25
Location
Cottonwood, AZ, USA
Airport
P52
Aircraft
PIPER PA28
Registration
N8619W
Category
Airplane
Highest injury
None
Fatalities
0
Phase of flight
Takeoff roll

Probable cause

The student pilot's improper pitch and lateral control during a soft-field takeoff, which resulted in impact with terrain. Contributing to the accident was the student pilot's failure to relinquish control of the airplane to the instructor.

NTSB narrative

The flight instructor reported that, during a soft-field takeoff with the student pilot at the flight controls, the airplane was in ground effect and yawed left with a high angle of attack. He added that, as the student was correcting, a wind gust from the right caused the airplane to drift left and put the airplane into a "cross controlled situation." The instructor attempted to assume control of the airplane, but the student did not relinquish control of the airplane. The instructor reported that he was unable to overpower the student and became concerned that the airplane was not producing enough lift and would aerodynamically stall or spin. The instructor pushed forward hard on the yoke to prevent a stall, and the airplane impacted terrain off the side of the runway about midfield. The airplane sustained substantial damage to the fuselage and the left and right wings. The instructor reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. The student did not submit a written statement as requested. An automated weather observation station located 14 miles northeast of the accident site reported that, about the time of the accident, the wind was from 210° at 8 knots and variable between 180° and 240°. The airplane was departing from runway 14. The Federal Aviation Administration's Airplane Flying Handbook, FAA-H-8083-3B, contained a subsection titled, "Soft/Rough-Field Takeoff and Climb," which stated, in part, the following: An attempt to climb prematurely or too steeply may cause the airplane to settle back to the surface as a result of the loss of ground effect. During the transition out of the ground effect area, the pilot should not attempt to climb out of ground effect before reaching the sufficient climb airspeed, as this may result in the airplane being unable to climb further, even with full power applied. Therefore, it is essential that the airplane remain in ground effect until at least VX is reached.

Analysis

Primary failure mode
Human factors
First missed decision gate
Instructor could have taken control earlier to prevent loss of control.

NTSB coding

Evidence available

  • Photos
  • 2 docket documents
View NTSB final reportView NTSB docket

Docket documents2

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