NTSB Identification: FTW90LA143.
The docket is stored on NTSB microfiche number 41905.
Accident occurred Saturday, July 21, 1990 in BERWICK, LA
Probable Cause Approval Date: 09/28/1992
Aircraft: AEROSPATIALE AS-350D, registration: N3598F
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 POSITIONING WITHIN A LANDING ZONE THE AIRCRAFT STRUCK TELEPHONE LINES WHILE HOVERING AT ABOUT THREE FEET. THE PILOT SAW THE LINES IMMEDIATELY BEFORE IMPACT, BUT WAS UNABLE TO AVOID THEM. THE MAIN ROTOR BLADES STRUCK AND SEVERED THE LINES WHICH THEN BECAME ENTANGLED WITH ONE TAIL ROTOR BLADE. THE BLADE SUBSEQUENTLY SEPARATED AND THE TAIL ROTOR GEARBOX AND A PORTION OF THE TAIL BOOM CAME OFF THE AIRCRAFT SHORTLY THEREAFTER. THE AIRCRAFT THEN LANDED HARD. THE LANDING ZONE WAS NOT ONE NORMALLY SERVICED BY THE OPERATOR AND THE PILOT HAD NEVER LANDED THERE BEFORE.

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

PILOT IN COMMAND'S FAILURE TO SEE AND AVOID OBSTACLES IN THE LANDING ZONE. CONTRIBUTING TO THE ACCIDENT WAS THE PILOT'S LACK OF FAMILIARITY WITH THE LANDING ZONE.

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