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N602RR accident description

Louisiana map... Louisiana list
Crash location 29.966667°N, 92.567223°W
Nearest city Gueydan, LA
30.026040°N, 92.508469°W
5.4 miles away
Tail number N602RR
Accident date 27 May 2014
Aircraft type Air Tractor Inc At 602
Additional details: None

NTSB Factual Report

On May 27, 2014, about 0835 central daylight time, an Air Tractor AT-602, N602RR, collided with power lines and terrain while spraying a rice field in Gueydan, Louisiana. The commercial pilot was fatally injured and the airplane was destroyed. The airplane was registered to and operated by Klondike Aviation LLC. Visual meteorological conditions prevailed and no flight plan was filed for the aerial spraying flight conducted under 14 Code of Federal Regulations Part 137.

A witness reported that he was driving his tractor parallel to the field the airplane was spraying. He was headed north and the wind was from the south between 15 and 25 knots. The witness said the airplane passed by him going to the south, crossed over the power lines and made a long, sweeping left turn to the north. The witness said the airplane had plenty of time and space to set up for his next pass. When the airplane was headed back toward the north, it was in a descent. The witness said it then struck the power lines and immediately nosed over into the ground. He saw a puff of white smoke followed by a puff of black smoke when the airplane struck the power lines. He then called 911 and responded to the scene.

A Federal Aviation Administration (FAA) inspector performed an on-scene examination of the airplane. According to the inspector, the airplane impacted the ground about 30 feet north of a set of about 30-feet-tall power lines and came to rest on its right side about 100 feet forward of the power lines. The airplane was facing toward the north and contacted the ground in a left wing low, steep nose down attitude. All major components of the airplane were accounted for at the accident site. A post-impact fire consumed most of the wings and fuselage from the cockpit toward the vertical fin.

A postaccident examination of the airplane wreckage was conducted by the National Transportation Safety Board Investigator-in-Charge (NTSB IIC) on July 15, 2014. Both wings were badly damaged. The leading edge skin and ribs for both wings had disintegrated from the wing root to about 4 feet from the wing tip due to thermal exposure. The leading edge skin that remained attached to the wing near the tip was compressed into the spar. Deep scoring marks, consistent with impact with a power line cable, were noted along the length of the left wing spar. The scoring began at the wing root and extended out about 9 feet toward the wing tip. The scoring was more pronounced at the wing root and faded off toward the tip. The tail section did not burn and was displaced up about 25 degrees. The flight control surfaces on the tail sustained minor impact damage except for the leading edge of the right horizontal stabilizer, which exhibited some leading edge impact damage. Flight control continuity for the elevator and rudder could not be confirmed due to fire damage; however, continuity was established for both the left and right ailerons. The flap actuator revealed the flaps were extended about 14 degrees at the time of impact. The airplane was equipped with an AmSafe airbag system. Due to fire damage, it could not be determined if the airbags had deployed. The onboard SATLOC GPS unit also sustained extensive fire damage and no data could be retrieved from the unit.

The pilot's wife stated that her husband had struck a bird the day before the accident in the accident airplane. He took a picture of the damage and sent it to her. The photo depicted a 2-foot-wide area of damage to the leading edge of the right wing (station 160.0). The leading edge was pushed into the wing toward the ribs and spar.

According to the operator, after the pilot reported the bird strike he finished his spray jobs and then brought the airplane back to the hangar. A company mechanic inspected the wing and determined it was only minor damage. The pilot agreed and felt it was safe to fly the airplane. The pilot then flew the airplane for another 12 hours that day without incident. That same day, after the pilot returned to spraying, a company pilot heard the pilot comment over the radio that the area of damaged wing was "coming apart." This concerned the company pilot and he looked at the airplane the following morning. He said there were several rivets missing in the area where the bird struck the wing and that he wouldn't have flown the airplane in that condition. The company pilot said he did not share his concerns with the pilot or the operator. He was also asked to describe the pilot's flying technique. He said, "[The pilot] would turn his aircraft flat and pull a lot of G's. He made the comment that he would pull the snot out of his nose in his downwind turns. The day of the accident he was on a downwind turn, and the air was not good that morning."

The area where the bird struck the right wing was examined. The leading edge skin and ribs were consumed by fire. The spar sustained thermal damage, but was otherwise undamaged. As a result, the extent of the damage from the bird strike and subsequent flights after the wing was damaged could not be fully determined and if it contributed to the accident.

An autopsy of the pilot was not conducted at the discretion of the Louisiana - Vermilion County Parish - Coroner in Abbeville, Louisiana.

Toxicological testing was conducted by the FAA Accident Research Laboratory in Oklahoma City, Oklahoma. The specimens tested positive for the following:

Tetrahydrocannabinol (Marihuana) detected in Lung

Tetrahydrocannabinol (Marihuana) detected in Blood (Cavity)

Tetrahydrocannabinol (Marihuana) detected in Kidney

0.0623 (ug/ml, ug/g) Tetrahydrocannabinol Carboxylic Acid (Marihuana) detected in Kidney

0.0259 (ug/ml, ug/g) Tetrahydrocannabinol Carboxylic Acid (Marihuana) detected in Blood (Cavity)

0.0079 (ug/ml, ug/g) Tetrahydrocannabinol Carboxylic Acid (Marihuana) detected in Lung

According to the pilot's wife, the pilot was a recreational user of marijuana on the weekends only. The accident occurred on a Tuesday. The wife also said her husband was not taking any medications and was in relatively good health. However, she and another company pilot both said the pilot was unusually quiet and she said that he also seemed aggravated on the morning of the accident. Neither of them knew why he was acting that way.

The weather conditions at Abbeville Chris Crusta Memorial Airport (IYA), Abbeville, Louisiana, about 25 miles east of the accident site at 0835, was reported as wind from 160 degrees at 13 knots gusting to 17 knots, visibility 10 miles, scattered clouds at 1,800 feet, broken clouds at 2,800 feet, overcast ceiling at 3,700 feet, temperature 30 degrees C, dew point 24 degrees C, and a barometric pressure setting of 30.04 inches of mercury.

NTSB Probable Cause

The pilot's failure to maintain airplane control, which resulted in a stall and subsequent collision with power lines.

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