Casualties unknown

1990-03-06: Mbb BO-105S (N105SM) — Omniflight Helicopters — Benton, AL

Benton, AL, US

On March 6, 1990, a Mbb BO-105S (registration N105SM) operated by Omniflight Helicopters was involved in an aviation accident near Benton, AL. Investigators recorded the probable cause as: THE PILOT-IN-COMMAND'S INADEQUATE VISUAL LOOKOUT. THE INCORRECT WIRE SURVEY GIVEN BY THE HIGHWAY PATROL PERSONNEL WAS A RELATED FACTOR. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive; 3 related events involving the same aircraft type or operator are linked below.

Sourcesthe U.S. National Transportation Safety Board (NTSB) historical archivePrimary reportUpdated 1781061362Data APIEditorial standards
Aircraft registered N105SM
Aircraft registered N105SM. Photo: Bill Larkins / CC BY-SA 2.0, via Wikimedia Commons

An EMS helicopter struck a wire while departing a remote patient pickup site, causing the support wire to snap and contact the main rotor system. The helicopter landed straight ahead. The crew had received a wire survey reporting no wires.

Incident Overview

An EMS/medevac helicopter was involved in a wire strike during a patient pickup operation at a remote site. The pilot had landed at the site, loaded the patient, and then executed a hover turn before departing along the same route used for landing.

Departure

After the hover turn, the helicopter began its departure flight. The crew had been provided with a wire survey from highway patrol personnel prior to landing at the site. The highway patrol reported that there were no wires crossing the road.

Wire Strike

Approximately 538 feet east of the takeoff site and at an altitude of about 40 feet above the ground, the helicopter collided with a wire that crossed above a highway. The pilot reported seeing the wire just prior to the collision. The support wire snapped upon impact and then came into contact with the main rotor system.

Landing

Following the wire strike, the pilot managed to land the helicopter straight ahead. The aircraft came to rest without further incident.

Previous Information

Prior to landing at the patient pickup site, the crew had received a wire survey from highway patrol personnel. The survey indicated that there were no wires crossing the road, which was inconsistent with the wire encountered during departure.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001212X22655. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.