Texas OH-13H/M74A N10009

Summary

On 28 July 2011 at about 00:30 local time, a Texas OH-13H/M74A registered N10009, operated by Hendrickson Flying Service Inc, was involved in an accident near Creston, Illinois, United States. One person was on board and one had minor injuries. The aircraft was substantially damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.

Date

28 July 2011 at 00:30

Classification

Accident

Location

Creston, Illinois, United States

Nearest airport

Hendrickson Flying Service (IL93)

Coordinates

41.9453, -88.9239

Aircraft

Texas OH-13H/M74A

Registration

N10009

Category

Helicopter

Engines

1

Operator

Hendrickson Flying Service Inc

Operating rule

Part 137: Agricultural

Purpose of flight

Aerial Application

Phase of flight

Not recorded

Route

Creston → Creston

Aircraft damage

Substantial

Weather

VMC

Light

Day

NTSB number

CEN11CA524

1 person had minor injuries.

The pilot's failure to maintain adequate skid clearance from the helicopter cart during landing, resulting in a dynamic rollover.

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

Read the full NTSB narrative

According to the pilot, he was landing the helicopter on a helicopter cart when its skid got caught on the cart and the helicopter subsequently rolled over. The pilot reported there were no mechanical malfunctions with the helicopter during the flight, and substantial damage was sustained to the helicopter tailboom when it rolled. Dynamic rollover is the tendency of a helicopter to continue rolling when the critical angle is exceeded, if one skid is on the ground, and the helicopter is pivoting around that point. Dynamic rollover is possible when a skid is caught by a projection on the surface or when landing on a slope.

Quoted verbatim from the NTSB record.