Casualties unknown

2004-12-15: Robinson R22 (N333UH) — Provo, UT

Provo, UT, US

On December 15, 2004, a Robinson R22 (registration N333UH) was involved in an aviation accident near Provo, UT. Investigators recorded the probable cause as: the flight instructor's failure to maintain clearance from the water. Contributing to the accident was the flight instructor's inability to detect a descent because of the obscuration between the water and the horizon due to the gray sky. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive; 8 related events involving the same aircraft type or operator are linked below.

Sourcesthe U.S. National Transportation Safety Board (NTSB) historical archivePrimary reportUpdated 1781061362Data APIEditorial standards

A helicopter rolled over in shallow water after the instructor took control and the aircraft lost lift during a turn. The main rotor blades and cabin were damaged.

Incident Overview

A flight instructor took control of a helicopter and departed toward a lake. During the flight, the instructor reported that the gray sky made it difficult to distinguish between the water and the sky. According to the student pilot, the instructor lowered the helicopter's nose during a turn. The instructor then leveled the helicopter and added power. The student stated that the helicopter lost lift and descended toward the water.

Accident Sequence

The landing skid contacted the water, causing the helicopter to roll over. It came to rest on its side in approximately 2 feet of water, about 250 feet from the shore. The main rotor blades were bent and the cabin area was crushed.

Post-Accident Examination

An examination of the helicopter's systems conducted by the Federal Aviation Administration (FAA) revealed no anomalies.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20050118X00058. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.