Sesin EXEC90 N8246J

Summary

On 8 June 2003 at about 21:00 local time, a Sesin EXEC90 registered N8246J was involved in an accident near Searcy, Arkansas, United States. One person was 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

8 June 2003 at 21:00

Classification

Accident

Location

Searcy, Arkansas, United States

Coordinates

35.2094, -91.6686

Aircraft

Sesin EXEC90

Registration

N8246J

Category

Helicopter

Engines

1

Operator

Not recorded

Operating rule

Part 91: General Aviation

Purpose of flight

Personal

Phase of flight

Not recorded

Route

Searcy → Searcy

Aircraft damage

Substantial

Weather

VMC

Light

Day

NTSB number

CHI03LA155

Nobody was injured.

The unqualified maintenance performed by the pilot and the inadequate autorotation by the pilot. A factor contributing to this accident was the overtemperature of the engine cooling system.

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

Read the full NTSB narrative

The helicopter impacted terrain during an autorotation following a loss of engine power. The pilot reported he received indications of an engine over temperature on a prior flight and upon landing saw that the belt driving the cooling system water pump had come off the pulley. He put the belt back on the pulley and ran up the engine while confirming that engine temperatures were within limits. The pilot noted he completed a normal takeoff after allowing the helicopter to hover for three to four minutes as he checked the engine temperature. The pilot stated the water temperature began rising rapidly during departure and the engine "immediately" began losing power. The pilot reported the engine lost power a few seconds later and he lowered the collective to begin an autorotation. The pilot noted the helicopter yawed to the right as he flared. The pilot stated the helicopter impacted the terrain, yawed 45 degrees to the right, and rolled over onto its left side.

Quoted verbatim from the NTSB record.