NTSB Identification: DEN73AD015
14 CFR Part 135 Nonscheduled operation of ROCKY MOUNTAIN
Aircraft: BELL 47G3B1, registration: N1397X----------------------------------------------------------------------------------------------------------------------------
FILE DATE LOCATION AIRCRAFT DATA INJURIES FLIGHT PILOT DATA
F S M/N PURPOSE
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3-3521 72/10/3 NR.HAYDEN,COLO BELL 47G3B1 CR- 0 0 1 COMMERCIAL COMMERCIAL, AGE 34, 6800
TIME - 1610 N1397X PX- 0 0 1 AIR TAXI-PASSG TOTAL HOURS, 3500 IN
DAMAGE-SUBSTANTIAL OT- 0 0 0 TYPE, NOT INSTRUMENT
RATED.
DEPARTURE POINT INTENDED DESTINATION
CRAIG,COLO RETURN
TYPE OF ACCIDENT PHASE OF OPERATION
PROPELLER/ROTOR FAILURE: MAIN ROTOR IN FLIGHT: NORMAL CRUISE
AIRFRAME FAILURE: IN FLIGHT IN FLIGHT: UNCONTROLLED DESCENT
PROBABLE CAUSE(S)
ROTORCRAFT - TRANSMISSION ROTOR DRIVE SYSTEM: MAIN ROTOR DRIVE SHAFT
MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
FACTOR(S)
MISCELLANEOUS ACTS,CONDITIONS - SEPARATION IN FLIGHT
EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
REMARKS- COUNTING ELK.M/R MAST THRUST BEARING FAILED FOR UNDET REASON.MAST AND M/R SEPARATED BFOR IMPACT.
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