Casualties unknown

2007-05-04: Grumman-schweizer G-164B (N668FA) — Humphrey, AR

Humphrey, AR, US

On May 4, 2007, a Grumman-schweizer G-164B (registration N668FA) was involved in an aviation accident near Humphrey, AR. Investigators recorded the probable cause as: The pilot's failure to maintain adequate clearance from power lines while gaining altitude after a spray run. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.

Sourcesthe U.S. National Transportation Safety Board (NTSB) historical archivePrimary reportUpdated 1781061362Data APIEditorial standards

An agricultural aircraft was destroyed when it struck power lines and impacted terrain during a spray run. The pilot reported gaining altitude after completing the last pass over a rice field before the collision occurred.

What happened

The accident involved an agricultural airplane that sustained substantial damage after colliding with overhead power lines and subsequently impacting the ground in an open field. According to the pilot's account, the incident occurred while he was concluding his final spray run on a rice field. After completing this task, the pilot departed the area toward the south and began to gain altitude. During this climb, the aircraft struck power lines that ran perpendicular across the field. No mechanical issues were reported prior to the event.

The investigation

The investigation focused on the sequence of events leading to the impact. Examination revealed that the agricultural airplane was destroyed after it struck power lines and impacted terrain in an open field. The pilot stated that as he completed his last spray run on a rice field, he departed the area to the south, gained altitude, and impacted the power lines running perpendicular across the field. No mechanical problems with the airplane were reported prior to the accident.

Findings

The primary factor in this accident was the loss of control due to terrain clearance issues during low-level agricultural operations. The aircraft struck power lines while gaining altitude after a spray run. fuel exhaustion is not cited; rather, the collision with infrastructure was the direct cause of destruction. The pilot's decision to gain altitude in proximity to overhead utilities contributed directly to the outcome.

Safety message

Pilots conducting agricultural operations must maintain strict awareness of overhead obstacles, particularly power lines that may run perpendicular to flight paths. Adequate clearance should be maintained during all phases of flight, especially when transitioning between spray runs or gaining altitude near infrastructure.

Probable cause

The pilot's failure to maintain adequate clearance from power lines while gaining altitude after a spray run.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20070613X00720. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.