NTSB Identification: ANC66A0052
14 CFR Part 135 Nonscheduled operation of ERA HELICOPTER
Aircraft: SIKORSKY S55, registration: N874----------------------------------------------------------------------------------------------------------------------------
FILE DATE LOCATION AIRCRAFT DATA INJURIES FLIGHT PILOT DATA
F S M/N PURPOSE
----------------------------------------------------------------------------------------------------------------------------
2-0569 66/6/29 NR.KENAI ALAS SIKORSKY S55 CR- 0 0 1 COMMERCIAL COMMERCIAL, FL.INSTR.,
TIME - 1434 N874 PX- 0 0 0 AIR TAXI-CARGO AGE 44, 2156 TOTAL HOURS,
DAMAGE-SUBSTANTIAL OT- 0 0 0 618 IN TYPE, NOT
INSTRUMENT RATED.
NAME OF AIRPORT - SHELL PLATFORM A
TYPE OF ACCIDENT PHASE OF OPERATION
TURBULENCE STATIC: IDLING ROTORS
PROBABLE CAUSE(S)
WEATHER - DOWNDRAFT,UPDRAFTS
WEATHER BRIEFING - NO RECORD OF BRIEFING RECEIVED
WEATHER FORECAST - FORECAST SUBSTANTIALLY CORRECT
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 55
WIND VELOCITY-KNOTS TYPE OF WEATHER CONDITIONS
15 VFR
TYPE OF FLIGHT PLAN
NONE
REMARKS- STRONG UPDRAFT WINDS ALONG SIDES OF PLATFORM CAUSED MAIN ROTOR TO STRIKE TAIL BOOM.
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