NTSB Identification: LAX95LA075.
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Accident occurred Monday, January 09, 1995 in GLENDALE, AZ
Probable Cause Approval Date: 06/19/1995
Aircraft: KAMAN HH43, registration: N321WN
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.

DURING A CLEANUP RUN OVER A FIELD, THE AIRCRAFT COLLIDED WITH SOME TREE BRANCHES WITH THE RIGHT MAIN ROTOR BLADE WHICH RESULTED IN A SEVERE VIBRATION AND SUBSTANTIAL DAMAGE TO THE TAILBOOM. THE PILOT MADE A SUCCESSFUL FORCED LANDING INTO A MUDDY FIELD. THE TREE BRANCHES EXTENDED 15 TO 20 FEET INTO THE FIELD. THERE WERE NO RESTRICTIONS OR OBSCURATION TO VISIBILITY REPORTED BY THE PILOT.

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

The pilot's failure to maintain an adequate visual lookout to avoid a collision with a tree during an aerial application swath run.

Full narrative available

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