Robinson R22 BETA N2548S

Summary

On 19 June 2010 at about 03:45 local time, a Robinson R22 BETA registered N2548S, operated by Hillsboro Aviation Inc, was involved in an accident near Hillsboro, Oregon, United States. 2 people were on board and nobody was injured. The aircraft was substantially damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.

Date

19 June 2010 at 03:45

Classification

Accident

Location

Hillsboro, Oregon, United States

Nearest airport

Portland-Hillsboro (KHIO)

Coordinates

45.5406, -122.9503

Aircraft

Robinson R22 BETA

Registration

N2548S

Category

Helicopter

Engines

1

Operator

Hillsboro Aviation Inc

Operating rule

Part 91: General Aviation

Purpose of flight

Personal

Phase of flight

Not recorded

Route

Hillsboro → Hillsboro

Aircraft damage

Substantial

Weather

VMC

Light

Day

NTSB number

WPR10LA298

Nobody was injured.

A partial loss of engine power while on approach for undetermined reasons.

Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.

Read the full NTSB narrative

As the pilot was approaching the destination airport after a local flight, the helicopter's engine rpm began to fluctuate between 100 percent and 60 percent. Although lowering the collective and manipulating the throttle temporarily increased the rpm, it began to fluctuate again, with the rpm decreasing. After the low rotor rpm warning horn and light activated, the pilot made the decision to perform an autorotation to a nearby open field. The helicopter touched down on the skids and subsequently rolled over onto its side. Prior to the accident, the helicopter's engine had been reportedly experiencing rpm fluctuations. A postaccident examination was performed on the engine and the magnetos and governor underwent further analysis. No evidence was found of an anomaly or malfunction that would have prevented the engine from producing normal power.

Quoted verbatim from the NTSB record.