9 fatalities

Sikorsky S-61N Helicopter Crash Near Weaverville, California (N612AZ)

Weaverville, CA, United States

On August 6, 2008, a SIKORSKY S-61N (registration N612AZ) operated by USDA Forest Service was involved in an aviation accident near Weaverville, CA. 9 people were killed. Investigators recorded the probable cause as: The following actions by Carson Helicopters: 1) the intentional understatement of the helicopter's empty weight, 2) the alteration of the power available chart to exaggerate the helicopter's lift capability, and 3) the practice of using unapproved… This summary draws on records from NTSB; 8 related events involving the same aircraft type or operator are linked below.

SourcesNTSBPrimary reportUpdated 1785761257Data APIEditorial standards

On August 5, 2008, a Sikorsky S-61N helicopter (N612AZ) struck trees and terrain after takeoff from Helispot 44 in California, killing the pilot, safety crewmember, and seven firefighters.

Accident Overview

On August 5, 2008, at about 1941 Pacific daylight time, a Sikorsky S-61N helicopter, registration N612AZ, impacted trees and terrain during its initial climb after takeoff from Helispot 44 (H-44). H-44 was situated at an elevation of approximately 6,000 feet in mountainous terrain near Weaverville, California.

Occupants and Injuries

The pilot-in-command, the safety crewmember, and seven firefighters sustained fatal injuries. The copilot and three firefighters suffered serious injuries. The helicopter was destroyed by impact forces and a postcrash fire.

Flight Details

The helicopter was operated by the U.S. Forest Service (USFS) as a public flight to transport firefighters from H-44 to another helispot. The USFS had contracted with Carson Helicopters, Inc. (CHI) of Grants Pass, Oregon, for the helicopter's services. The aircraft was registered to CHI and leased to Carson Helicopter Services, Inc., also of Grants Pass.

Meteorological and Flight Plan Information

Visual meteorological conditions prevailed at the time of the accident. A company visual flight rules flight plan had been filed.

Contributing factors

Related operating infoOperatorPilotFAA/RegulatorOther governmentFlight crewDesignFluid conditionAvailability of related infoNot installed/available