Friday, October 21, 2016

Cessna 152, Kingdom Air Corps, N488E: Accident occurred October 14, 2016 at King Ranch Airport (AK59), Sutton, Alaska

Aviation Accident Final Report - National Transportation Safety Board: https://app.ntsb.gov/pdf 

Investigation Docket  - National Transportation Safety Board: https://dms.ntsb.gov/pubdms

KINGDOM AIR CORPS:   http://registry.faa.gov/N488E

FAA Flight Standards District Office: FAA Anchorage FSDO-03


NTSB Identification: GAA17CA051
14 CFR Part 91: General Aviation
Accident occurred Friday, October 14, 2016 in Chickaloon, AK
Probable Cause Approval Date: 01/18/2017
Aircraft: CESSNA 152, registration: N488E
Injuries: 2 Uninjured.

NTSB investigators used data provided by various entities, including, but not limited to, the Federal Aviation Administration and/or the operator and did not travel in support of this investigation to prepare this aircraft accident report.

The flight instructor reported that during a soft field takeoff on a private 1,800-foot turf airstrip, with 10 degrees of flaps, the airplane wheels lifted off the ground so he relaxed back pressure on the yoke, and the airplane settled back onto the ground. He further reported that after the airplane lifted off and settled back onto the ground a second time, he decided to abort the takeoff by reducing the power to idle, but the airplane lifted off the ground momentarily and settled onto the ground for a third time. The pilot firmly applied the brakes, but the airplane overran the runway.

The airplane sustained substantial damage to the firewall.

The flight instructor reported that there were no preaccident mechanical failures or malfunctions with the airframe or engine that would have precluded normal operation.

The flight instructor further reported that he admits that he was late in deciding to abort the takeoff.

The Federal Aviation Administration has published the Airplane Flying Handbook FAA-H-8083-3B (2016). This handbook discusses pilot actions after liftoff during soft field takeoffs and states in part:

After the airplane becomes airborne, the pilot should gently lower the nose with the wheels clear of the surface to allow the airplane to accelerate to VY, or VX if obstacles must be cleared. Immediately after the airplane becomes airborne and while it accelerates, the pilot should be aware that, while transitioning out of the ground effect area, the airplane will have a tendency to settle back onto the surface. 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. This requires a good understanding of the control pressures, aircraft responses, visual clues, and acceleration characteristics of that particular airplane.

The National Transportation Safety Board determines the probable cause(s) of this accident as follows:
The flight instructor's delay in aborting the takeoff from a turf runway, which resulted in a runway overrun.

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