NTSB Identification: CHI85LA197.
The docket is stored on NTSB microfiche number 27535.
Accident occurred Wednesday, May 15, 1985 in STONINGTON, IL
Aircraft: HUGHES 269, registration: N7485F
Injuries: 1 Uninjured.

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

AFTER COMPLETING A SWATH RUN, THE PLT MANEUVERED THE HELICOPTER UP OVER A POWER LINE, THEN MADE A TURN-AROUND FOR ANOTHER SWATH RUN. HE STATED THAT AS HE STARTED THE NEXT RUN, HE 'FELT THE WIND PUSH THE TAIL UPWARD FORCING THE NOSE DOWNWARD...' HE APPLIED AFT CYCLIC TO LEVEL THE HELICOPTER & FULL COLLECTIVE TO STOP THE DESCENT. HOWEVER, THE HELICOPTER IMPACTED THE GROUND IN A LEVEL ATTITUDE, THEN ROLLED FORWARD & CAME TO REST INVERTED. ABOUT 13 MI NORTHEAST AT DECATUR, IL, THE 1800 CDT WIND WAS FROM 280 DEG AT 16 KTS. THE PLT REPORTED THE WIND WAS GUSTING TO 24 KTS.

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

IN-FLIGHT PLANNING/DECISION..IMPROPER..PILOT IN COMMAND

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

COMPENSATION FOR WIND CONDITIONS..IMPROPER..PILOT IN COMMAND

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

CLEARANCE..NOT MAINTAINED..PILOT IN COMMAND


Contributing Factors

TERRAIN CONDITION..HIGH OBSTRUCTION(S)


Contributing Factors

WEATHER CONDITION..HIGH WIND


Contributing Factors

WEATHER CONDITION..GUSTS

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