Friday, August 25, 2017

Maule M-7-235C Orion, N6447M: Accident occurred August 24,2017 at Crater Lake-Klamath Regional Airport (KLMT), Klamath County, Oregon

The National Transportation Safety Board did not travel to the scene of this accident.

Additional Participating Entity: 
Federal Aviation Administration / Flight Standards District Office; Hillsboro, Oregon

Aviation Accident Preliminary Report - National Transportation Safety Board:

NTSB Identification: WPR17LA192
14 CFR Part 91: General Aviation
Accident occurred Thursday, August 24, 2017 in Klamath Falls, OR
Aircraft: MAULE M 7-235C, registration: N6447M
Injuries: 1 Uninjured.

This is preliminary information, subject to change, and may contain errors. Any errors in this report will be corrected when the final report has been completed. NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.

On August 24, 2017, about 0950 Pacific daylight time, a Maule M-7-235C, N6447M, was substantially damaged when it ground looped during a landing attempt at Crater Lake-Klamath Regional Airport (LMT), Klamath Falls, Oregon. The commercial pilot was not injured. The helicopter was registered and operated by a private individual as a personal flight, conducted under the provision of 14 Code of Federal Regulations Part 91. Visual meteorological conditions prevailed and a flight plan was not filed for the local flight that departed a private strip about 0940.

According to the accident pilot, the taxi and takeoff from his private strip located about 5 nm from LMT were uneventful. During the traffic pattern entry, the pilot interpreted the wind sock to show calm winds and subsequently configured the airplane to land on runway 32. The airplane touched down in a three-point attitude and began a hard left turn. The pilot attempted to counter the uncommanded movement with right rudder and right break, but the airplane nosed over and came to rest inverted. 

An airport representative reported that when they attempted to move the airplane, it pivoted on the left main landing gear while the right main landing gear and nose landing gear turned freely. He further remarked that he had to disengage the parking break before they could move the airplane. 

A postaccident examination of the airplane by the Federal Aviation Administration revealed substantial damage to the firewall.

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