Schweizer Aircraft Corp G 164B accident near Stockton, CA

On March 27, 2018, a Schweizer Aircraft Corp G 164B (airplane) was involved in an accident near Stockton, CA. 1 person died. Damage to the aircraft: substantial.

Date
March 27, 2018
Place
Stockton, CA
Aircraft
Schweizer Aircraft Corp G 164B · Airplane
Injuries
1 fatal, 0 serious, 0 minor
Damage
Substantial
Position
37.848°N, 121.516°W
NTSB ID
20180327X91612

Official records · WPR18LA113

NTSB summary

HISTORY OF FLIGHTOn March 27, 2018, about 1405 Pacific daylight time, a Schweizer Aircraft Corporation G-164B restricted category agricultural airplane, N3629E, was substantially damaged after colliding with high transmission power lines and a subsequent impact with terrain about 10 nautical miles southwest of Stockton, California. The commercial pilot was fatally injured. The airplane was owned and operated by Haley Flying Service of Tracy, California, as a Title 14 Code of Federal Regulations Part 137 agricultural application flight, and a flight plan was not filed. Visual meteorological conditions prevailed for the local flight, which had departed the operator's private airstrip about 30 minutes before the time of the accident. In a statement submitted to the National Transportation Safety Board (NTSB), a company ground crewman who witnessed the accident reported that the field being sprayed had transmission towers angling across it to support transmission power lines. After the pilot finished spraying the field in a north to south orientation, the witness advised the pilot to spray the area on the west side of the transmission towers to ensure proper coverage. As the witness watched the spray being dispensed, he saw "a flash," looked up, and observed the airplane impact the ground. The witness indicated, in a statement to local law enforcement personnel, that, while the pilot was flying southbound below and under two sets of high transmission power lines, the airplane clipped the second set of lines, which caused it to impact the ground nose first. There was no postimpa

Probable cause

The pilot's failure to maintain clearance with power lines while maneuvering during an aerial application flight.

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