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FILE DATE LOCATION AIRCRAFT DATA INJURIES FLIGHT PILOT DATA
F S M/N PURPOSE
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3-2144 69/1/26 NR.TYONEK,ALAS BELL 205A CR- 1 0 0 COMMERCIAL COMMERCIAL, AGE 26, 2165
TIME - 1243 N4048G PX- 1 0 0 AIR TAXI-PASSG TOTAL HOURS, 2122 IN
DAMAGE-DESTROYED OT- 0 0 0 TYPE, NOT INSTRUMENT
RATED.
TYPE OF ACCIDENT PHASE OF OPERATION
COLLISION WITH GROUND/WATER: UNCONTROLLED IN FLIGHT: UNCONTROLLED DESCENT
PROBABLE CAUSE(S)
SYSTEMS - FLIGHT CONTROL SYSTEMS: FLIGHT CONTROL BOOST SYSTEMS, HYDRAULIC
ROTORCRAFT - FLIGHT CONTROL SYSTEMS: CYCLIC PITCH CONTROL SYSTEM
ROTORCRAFT - FLIGHT CONTROL SYSTEMS: COLLECTIVE PITCH CONTROL SYSTEM
MISCELLANEOUS ACTS,CONDITIONS - IMPROPER/INADEQUATE VENTING
MISCELLANEOUS ACTS,CONDITIONS - JAMMED
WEATHER - ICING CONDITIONS-INCLUDES SLEET,FREEZING RAIN,ETC.
PERSONNEL - PRODUCTION-DESIGN-PERSONNEL: POOR/INADEQUATE DESIGN
FACTOR(S)
MISCELLANEOUS ACTS,CONDITIONS - AIRCRAFT CAME TO REST IN WATER
WEATHER BRIEFING - NO RECORD OF BRIEFING RECEIVED
WEATHER FORECAST - UNKNOWN/NOT REPORTED
SKY CONDITION CEILING AT ACCIDENT SITE
CLEAR UNLIMITED
VISIBILITY AT ACCIDENT SITE PRECIPITATION AT ACCIDENT SITE
5 OR OVER(UNLIMITED) NONE
OBSTRUCTIONS TO VISION AT ACCIDENT SITE TEMPERATURE-F
NONE 15
TYPE OF WEATHER CONDITIONS TYPE OF FLIGHT PLAN
VFR NONE
REMARKS- MOISTURE IN SERVO CYL VENT PORTS FROZE,PILOT VALVES BELOW PORTS BECAME INOP CAUSED CONTROL LOCK-UP
