NTSB Identification: DEN88FA091.
The docket is stored on NTSB microfiche number 36003.
Nonscheduled 14 CFR
Accident occurred Saturday, April 02, 1988 in SILVER PLUME, CO
Probable Cause Approval Date: 02/28/1989
Aircraft: AEROSPATIALE SA316B, registration: N72590
Injuries: 4 Uninjured.
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.
ON THE DAY OF THE ACCIDENT, N72590 WAS OPERATING AS ST. ANTHONY HOSPITAL'S FLIGHT FOR LIFE HELICOPTER. THE PLT HAD JUST PICKED UP A PATIENT AND WAS EN ROUTE OVER MOUNTAINOUS TERRAIN WHEN A PART FROM THE FLT CONTROL MIXING UNIT FAILED DUE TO FATIGUE. WITHOUT COLLECTIVE CONTROL, THE PLT EXECUTED AN EMERG, RUN-ON LANDING ON A SMALL ROAD. DURING THE RUN-ON LANDING, THE NOSE GEAR AND RIGHT STRUT FAILED. THE ACFT WAS SUBSTANTIALLY DAMAGED, HOWEVER, NO ONE ONBOARD WAS INJURED.
The National Transportation Safety Board determines the probable cause(s) of this accident to be:ROTORCRAFT FLIGHT CONTROL,MIXING UNIT..SEPARATION
The National Transportation Safety Board determines the probable cause(s) of this accident to be:ROTORCRAFT FLIGHT CONTROL,MIXING UNIT..FATIGUE
ROTORCRAFT FLIGHT CONTROL,COLLECTIVE CONTROL..INOPERATIVE
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