NTSB Identification: MKC86FA020.
The docket is stored on NTSB microfiche number 29233.
Nonscheduled 14 CFR
Accident occurred Thursday, October 31, 1985 in MANSFIELD, MO
Aircraft: BELL 206L-1, registration: N27689
Injuries: 1 Fatal,1 Serious,1 Minor.
NTSB investigators either traveled in support of this investigation or conducted a significant amount of investigative work without any travel, and used data obtained from various sources to prepare this aircraft accident report.
AFTER DEPARTING WEST PLAINS HOSPITAL FOR SPRINGFIELD, TRANSFERRING A CRITICALLY INJURED PATIENT, THE PLT OF THE EMS HELICOPTER BEGAN TO ENCOUNTER DETERIORATING WEATHER. THE PLT WAS CONCERNED ABOUT THE CLOSE SPREAD OF TEMPERATURE AND DEW POINT, BUT HAD ADEQUATE CEILINGS AND VISIBILITIES ALONG HIS ROUTE OF FLT TO CONTINUE. AFTER CRESTING A HILL WEST OF MANSFIELD, MISSOURI, ALONG MISSOURI HWY 60, THE PLT ENCOUNTERED LOWERING CEILINGS AND LIGHT FOG. THE PLT STATED HE DID NOT LIKE THE CONDITION OF THE WEATHER AFTER PASSING THE HILL AND INITIATED A RIGHT TURN TO PROCEED BACK TO MANSFIELD. POWER LINES WERE IMPACTED BY THE HELICOPTER IMMEDIATELY AFTER THE PLT INITIATED THE TURN. THE PLT DID NOT REALIZE THAT HE HAD DESCENDED LOW ENOUGH TO STRIKE THE POWER LINES THAT WERE OBSCURED IN FOG AND LOW CLOUDS.
The National Transportation Safety Board determines the probable cause(s) of this accident to be:VFR FLIGHT INTO IMC..INADVERTENT..PILOT IN COMMAND
The National Transportation Safety Board determines the probable cause(s) of this accident to be:CLEARANCE..NOT MAINTAINED..PILOT IN COMMAND
The National Transportation Safety Board determines the probable cause(s) of this accident to be:IN-FLIGHT PLANNING/DECISION..INADEQUATE..PILOT IN COMMAND
WEATHER CONDITION..LOW CEILING
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