EMS Helicopter Fatality Following Wire Strike

Casualties unknown • Middletown, CT, US

An EMS helicopter struck an unmarked static wire 105 feet above the ground, resulting in a tail boom separation and one fatality.

What happened

A northbound EMS helicopter was flying toward its landing area when it struck an unmarked static wire at an altitude of 105 feet. The impact caused the tail boom to separate from the fuselage, leading to an uncontrollable descent. The aircraft struck the ground in an inverted position. The accident resulted in one fatality.

At the time of the accident, witnesses reported that the night was dark and fog was beginning to form. Although numerous emergency vehicles with red and blue flashing lights were present in the area, no abrupt maneuvers were observed by witnesses prior to the aircraft striking the wire. Following the accident, the pilot stated he had no memory of the event.

Findings

The investigation determined that the pilot had not performed a reconnaissance of the landing area before arrival. Furthermore, the pilot had not communicated that the landing area had been identified at the time the wire strike occurred. The investigation also noted that neither the pilot nor the hospital communications coordinator responsible for the flight request had sought information regarding potential hazards in the proposed landing zone.

Probable cause

The pilot's failure to perform an aerial reconnaissance of the landing area and the failure of both the pilot and hospital communications coordinator to request hazard information regarding the landing site, leading to the strike of an unmarked static wire.

Frequently asked questions

What happened in the 1992-06-21 Mbb BK-117 accident near Middletown, CT?

An EMS helicopter struck an unmarked static wire 105 feet above the ground, resulting in a tail boom separation and one fatality.

What aircraft was involved and where did it happen?

The accident on 1992-06-21 involved a Mbb BK-117, registration N117HH, operated by Rocky Mountain Helicopters, at Middletown, CT.

What was the probable cause of the accident?

The pilot's failure to perform an aerial reconnaissance of the landing area and the failure of both the pilot and hospital communications coordinator to request hazard information regarding the landing site, leading to the strike of an unmarked static wire.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001211X14950. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.

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