Enstrom F-28C accident near Buckner, MO

On June 14, 1993, an Enstrom F-28C (helicopter) was involved in an accident near Buckner, MO. 2 people were seriously injured. Damage to the aircraft: substantial.

Date
June 14, 1993
Place
Buckner, MO
Aircraft
Enstrom F-28C · Helicopter
Injuries
0 fatal, 2 serious, 0 minor
Damage
Substantial
Position
39.130°N, 94.189°W
NTSB ID
20001211X12572

NTSB summary

On June 14, 1993, about 1253 central daylight time, an Enstrom, F-28C, helicopter, N51717, received substantial damage when it impacted a barn and the ground near Buckner, Missouri during an aerial observation flight for the operator, Missouri Public Service. The commercial pilot, and one other passenger were both seriously injured. The flight was operating in visual meteorological conditions under 14 CFR Part 91. An interview with the pilot/owner of N51717 revealed that the flight was carrying a passenger, an employee of Missouri Public Service, for the purpose of inspecting power lines for damage. The pilot left Grain Valley, Missouri (3GV),picked up the passenger at Oakgrove, and then proceeded to fly segments of power lines before refueling at Lexington, Missouri airport. Upon departing, the flight headed southbound to inspect the Sibly-Blue Springs power line. Approximately 45 to 50 minutes into the flight between Sibly and Blue Springs, the pilot and passenger reported hearing a "clunk"/"pop" and felt a jolt. The pilot stated he started an immediate auto rotation, lowering the collective to stabilize the aircraft, and made a left turn to clear the power lines and try to position the aircraft into the wind. With no place for a safe run on landing, the pilot made a hard emergency landing with a nose left attitude. The helicopter slid next to a corrugated metal and pole shed. Immediately upon landing, the pilot noticed that a fire had started in the engine area. The pilot and passenger were both able to evacuate the aircraft before it and the nearby pole shed were comple

Probable cause

THE NUT BACKING OFF THE CONNECTING ROD BOLT RESULTING IN ROD FAILURE. A FACTOR INVOLVED IN THIS ACCIDENT WAS THE LACK OF SUITABLE TERRAIN FOR THE PILOT IN COMMAND TO MAKE A RUN ON LANDING.

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