Casualties unknown

Visual Approach Collision with Utility Pole (N66MT)

Ames, IA, US

On January 31, 2002, a Piper PA-42-720 (registration N66MT) was involved in an aviation accident near Ames, IA. Investigators recorded the probable cause as: The pilot's failure to maintain the proper glide path during the final portion of the approach. Factors relating to this accident were the low altitude and the utility pole. 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 2026-06-10Data APIEditorial standards
Aircraft registered N66MT
Aircraft registered N66MT. Photo: DUNCAN KIRK from Coeur d'Alene, United States / CC BY 4.0, via Wikimedia Commons

A pilot hand-flew a visual approach after disconnecting the autopilot, using the glide slope indicator as a cross-check. The aircraft struck a pole with electrical wires and came to rest short of the approach lights.

Incident Description and Pilot Account During an instrument landing system (ILS) approach, the pilot reported that the autopilot was coupled to the approach and the glide slope. Approximately 2.5 to 3 miles from the airport, the pilot visually acquired the approach lights and runway lights. At that point, the pilot disconnected the autopilot and yaw damper to hand-fly a visual approach, using the glide slope indicator as a cross-check for the correct glide path. The pilot stated that the glide slope indicator showed the aircraft was slightly above the glide path, which was corrected. Seconds later, the aircraft struck a pole that was passing through electrical wires. The aircraft came to rest short of the approach lights and to the right of the intended path. ## Investigation Findings An examination of the airplane revealed no anomalies. An examination of the ILS approach to the runway showed that the facility operated satisfactorily.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20020201X00163. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.