Pilot Debrief

CESSNA U206G near Yuma, AZ — 2010-05-06

Final reportWPR10FA228
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Date
2010-05-06
Location
Yuma, AZ, USA
Airport
KNYL
Aircraft
CESSNA U206G
Registration
N756WN
Category
Airplane
Highest injury
Fatal
Fatalities
1
Phase of flight
Maneuvering

Probable cause

The pilot's loss of situational awareness and failure to maintain aircraft control while maneuvering at low altitude. Contributing to the accident was glare from the rising sun.

Contributing factors

Contributing to the accident was glare from the rising sun.

NTSB narrative

The operator reported that the purpose of the flight was to release insects over selected agricultural fields, which the pilot would typically perform early in the morning, before the heat of the day. The operator provided flight track data for flights the pilot conducted on the three days prior to the accident. During all three flights, the airplane departed the airport, traveled to the west, circled two fields in the vicinity of the accident location, and then proceeded south. The recorded radar data of the accident flight depicted the airplane departing the airport and climbing to 500 feet above ground level (agl). The airplane proceeded west about 5 miles and then performed a left 270-degree turn. It then made a left-hand turn to the south-southwest and proceeded for 2 miles. About 8 minutes after departure, the airplane started a right-hand turn at 500 feet agl and after about 180 degrees through the turn, the radius of the turn started to decrease, and the altitude decreased to 100 feet agl. The final radar return was about 10 minutes after departure at 100 feet agl, in the vicinity of the accident site. A witness reported observing the airplane descend into the ground, which was followed by an explosion and fire. Sunrise on the day of the accident occurred about the time of the accident, and the radar data depicted the airplane descending out of 500 feet agl as it was turning into the azimuth of the rising sun. Sun glare likely momentarily impeded the pilot’s situational awareness enough to result in a rapid loss of altitude while in a turn. A postaccident examination of the engine and airframe did not reveal anything that would have precluded the normal operation of the engine or flight controls.

Analysis

Primary failure mode
Controlled flight into terrain
First missed decision gate
Pilot could have avoided the turn into the sun's azimuth to maintain situational awareness.

NTSB coding

Evidence available

  • ADS-B / radar
  • Photos
  • 12 docket documents
View NTSB final reportView NTSB docket

Docket documents12

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