1 fatality

12 Jun 2012: ROBINSON HELICOPTER COMPANY R44 II (N282MC) — DRAGONFLY AVIATION, LLC — East Wenatchee, WA

East Wenatchee, WA, United States

On 12 Jun 2012, a ROBINSON HELICOPTER COMPANY R44 II (registration N282MC) operated by DRAGONFLY AVIATION, LLC was involved in an aviation accident near East Wenatchee, WA. One person was killed. Investigators recorded the probable cause as: The pilot’s failure to adequately monitor the environment and maintain clearance from the power lines while maneuvering at low altitude. This summary draws on records from NTSB; 12 related events involving the same aircraft type or operator are linked below.

SourcesNTSBPrimary reportUpdated 1778583330Data APIEditorial standards

On June 12, 2012, a Robinson R44 II helicopter collided with a power line in East Wenatchee, Washington. The commercial pilot was seriously injured and the passenger fatally injured. No mechanical issues were found.

Overview

On June 12, 2012, at 1520 Pacific daylight time, a Robinson Helicopter Company R44 II, registration N282MC, collided with a power line in East Wenatchee, Washington. The helicopter was owned by Reed Helicopters and operated by Dragonfly Aviation, LLC, through a contract with JR Helicopters, LLC, under Title 14 Code of Federal Regulations Part 91. The helicopter sustained substantial damage. The commercial pilot sustained serious injuries and the pilot-rated passenger was fatally injured. Visual meteorological conditions prevailed, and no flight plan was filed.

Flight Details

According to the operator, the helicopter was on a 30-day contract to dry cherries, arranged through JR Helicopters. The operator reported that the helicopter was not equipped with dual controls. During a telephone interview, the pilot stated that the pilot-rated passenger was a newer employee who had come to watch the flying pilot work the orchard. The passenger asked to accompany on a flight. The flying pilot stated that it was not typical, but permissible, so he took the passenger on the accident flight to show him the ropes. The flying pilot did not recall the accident but noted that there was nothing wrong with the helicopter prior to lift off and transition to forward flight.

Witness Account

A witness living next to the orchard observed the helicopter flying in a southerly direction. As the helicopter made a steep left turn, the main rotor impacted a power line, and the helicopter descended into a tree.

Postaccident Examination

A postaccident airframe and engine examination revealed rotation signatures on the fanwheel and clutch assemblies. The engine spark plugs were removed, showing normal wear signatures. Engine cylinder compression was established by covering the lower spark plug holes with a finger. Flight control continuity was established. The flight control servos were removed and appeared normal. The two hydraulic servos (actuators) were disassembled, and the hydraulic fluid was captured. No mechanical malfunctions or failures were found that would have precluded normal operation.

Contributing factors

Causes

PilotAltitude — Not attained/maintained

Other contributing factors

Effect on equipment