NTSB Identification: LAX89LA226.
The docket is stored on NTSB microfiche number 40551.
Accident occurred Saturday, June 24, 1989 in PARKER DAM, CA
Probable Cause Approval Date: 01/22/1991
Aircraft: CESSNA T210L, registration: N1982K
Injuries: 4 Minor.

NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.

THE PILOT SAID THAT HE ENTERED A NORMAL LEFT HAND PATTERN FOR A LANDING AT THE DIRT AIRSTRIP, BUT WAS 'CUT OFF BY A ARMY HELICOPTER' THAT APPEARED SUDDENLY FROM BELOW. HE MANEUVERED TO AVOID A COLLISION & SUBSEQUENTLY ENTERED A WIDE RIGHT BASE TO THE AIRSTRIP. HE STATED THAT HE DID NOT HAVE AN OPPORTUNITY TO CHECK THE WIND SOCK WHILE IN THE PATTERN. REPORTEDLY, AFTER TOUCH DOWN, A STRONG GUST OF WIND PUSHED THE AIRCRAFT OFF THE RIGHT SIDE OF THE RUNWAY & IT COLLIDED WITH SEVERAL LARGE ROCKS. ALSO, THE PILOT STATED THAT AFTER THE LANDING, 'THE WIND SOCK STOOD STRAIGHT OUT WITH A 90 DEGREE CROSS WIND' AT A SPEED HE ESTIMATED TO BE 18 KTS WITH GUSTS TO 25 KTS.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

IMPROPER PLANNING/DECISION BY THE PILOT AND HIS FAILURE TO OBTAIN WIND INFORMATION BEFORE LANDING. FACTORS RELATING TO THIS ACCIDENT WERE: THE ADVERSE WEATHER CONDITIONS.

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