Aerospatiale AS-350B accident near Cameron, MO

On May 27, 1993, an Aerospatiale AS-350B (helicopter) was involved in an accident near Cameron, MO. 2 people died. Damage to the aircraft: destroyed.

Date
May 27, 1993
Place
Cameron, MO
Aircraft
Aerospatiale AS-350B · Helicopter
Injuries
2 fatal, 2 serious, 0 minor
Damage
Destroyed
Position
39.740°N, 94.231°W
NTSB ID
20001211X12342

Official records · CHI93FA182

NTSB summary

HISTORY OF FLIGHT On May 27, 1993, at 0626 central daylight time, an Aerospatiale AS 350B helicopter, N782LF, operated in emergency medical service by Rocky Mountain Helicopters, Inc. (dba Life Flight), impacted terrain during an emergency procedure in the vicinity of Cameron, Missouri. The helicopter was destroyed. The ATP pilot and the patient were fatally injured. The flight nurse (FN) and respiratory therapist (RT) received serious injuries. Visual meteorological conditions prevailed for the flight, no flight plan was filed. The flight operated under 14 CFR Part 135, and originated from Harrison County Hospital in Bethany, Missouri, approximately 0607. The intended destination was St. Luke's Hospital in Kansas City, Missouri. Records indicate the accident flight originated when two Life Flight company helicopters launched from St. Luke's Hospital helipad on an "Air Standby" status. The accident helicopter lifted off at 0424 and was airborne when company dispatch personnel relayed the message that there would be one patient in critical condition to pick up at the hospital in Bethany, Missouri. The helicopter landed at Executive Beech Airport at 0428, took on fuel, and departed the airport bound for Bethany, Missouri at 0442. Flight following records indicate the pilot made a routine position report with company dispatch at 0458. The pilot reported a heading of eighteen degrees, 39 Nautical Miles (NM) to destination, a ground speed of 163 knots, and 15 minutes estimated time en route. The dispatcher stated the pilot commented it would be "slow going coming back" due to he

Probable cause

THE LOSS OF ENGINE POWER DUE TO FAILURE OF THE SECOND STAGE TURBINE LABYRINTH SEAL. FACTORS RELATED TO THE ACCIDENT WERE: THE UNFAVORABLE WIND AND TALL TREES BORDERING THE EMERGENCY LANDING AREA.

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