Amateur-built Sonex N997KK accident near Cottonwood, Arizona

Mar 18, 2009 · NTSB number WPR09CA152 · Final report

Probable cause

The loss of engine power for undetermined reasons.

NTSB analysis

The pilot experienced a total loss of engine power during the first takeoff of the newly completed homebuilt experimental airplane. The pilot attempted to restart the engine but was unsuccessful. He then executed a forced landing in an open field. During the landing sequence the airplane sustained substantial damage to the left wing when it struck scrub chaparral. Post examination of the airplane and engine by an FAA inspector did not reveal any pre-impact malfunctions that would explain the loss of power.

Text from the NTSB. Open the NTSB docket for WPR09CA152 for the full record.

Event

Date
Mar 18, 2009
Type
Accident
Place
Cottonwood, Arizona
Nearest airport
Cottonwood Airport (P52)
Highest injury
None
Weather
Visual (VMC)
Light
Day

Amateur-built Sonex

N-number
N997KK
Category
Airplane
Damage
Substantial
Operating rule
Part 91 (general aviation)
Purpose of flight
Personal

From the NTSB aviation accident database: N-registered aircraft, events since 2008, data through Oct 28, 2026. The file is published monthly, so the latest weeks are incomplete and recent records can change. The official source is the NTSB aviation investigation search. CheckAero is independent and not affiliated with the NTSB.