Casualties unknown

1997-05-29: Grumman G164 (N474Y) — Illinois City, IL

Illinois City, IL, US

On May 29, 1997, a Grumman G164 (registration N474Y) was involved in an aviation accident near Illinois City, IL. Investigators recorded the probable cause as: The pilot failed to keep the power line foremost in his mind. 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

During an agricultural spraying flight, the pilot flew parallel to a power line, then initiated a pull-up and left turn, striking a static wire with the left wing tip. No mechanical issues were found. The pilot acknowledged losing awareness of the power line.

Accident Details

The pilot was conducting an agricultural spraying operation when the airplane collided with a static wire situated at the top of a power line. According to witnesses, the pilot was flying parallel to the power line during the spraying run. Witnesses observed the pilot begin a pull-up and a left turn, at which point the airplane's left wing tip contacted the static wire.

Investigation Findings

Examinations of the aircraft and its engine did not reveal any pre-existing discrepancies or malfunctions. The investigation focused on the circumstances of the collision.

Pilot Statement

In a statement, the pilot explained that he failed to keep the power line foremost in his mind. He indicated that he was looking past the wires toward the far end of the pasture that he was spraying, and as a result did not see the wire that the airplane hit.

Conclusion

The accident occurred when the airplane's left wing tip struck a static wire atop a power line during an agricultural spraying operation. No mechanical factors were identified.

Probable cause

The pilot failed to keep the power line foremost in his mind.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001208X07887. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.