NTSB Identification: LAX94LA241.
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Accident occurred Monday, June 06, 1994 in KANEOHE, HI
Probable Cause Approval Date: 12/07/1994
Aircraft: HUGHES 369D, registration: N4943T
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.

The pilot said the helicopter was lifting construction supplies to a power line tower in a mountainous area above the staging area. On the accident flight segment, the helicopter had delivered a load of dry cement in a cargo net and was returning with the empty paper bags in the cargo net. As the helicopter established a 20-foot hover at the staging area, the net flew upward into the tail rotor. The tail rotor assembly and gear box separated from the tail boom and the helicopter began to spin. The pilot lowered the collective to initiate an autorotation and the helicopter landed hard.

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

the operator's and pilot's failure to ensure that the cargo net containing empty paper bags was sufficiently ballasted to prevent it from flying up into the tail rotor.

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