Friday, August 19, 2016

Cessna U206A, N8076Z: Incident occurred August 17, 2016 in Sleetmute, Alaska

Aviation Accident Final Report - National Transportation Safety Board: http://app.ntsb.gov/pdf

Docket And Docket Items -  National Transportation Safety Board: http://dms.ntsb.gov/pubdms

Aviation Accident Data Summary  -   National Transportation Safety Board:   http://app.ntsb.gov/pdf

http://registry.faa.gov/N8076Z

FAA Flight Standards District Office: FAA Anchorage FSDO-03

NTSB Identification: GAA16CA455
14 CFR Part 91: General Aviation
Accident occurred Wednesday, August 17, 2016 in Sleetmute, AK
Probable Cause Approval Date: 12/05/2016
Aircraft: CESSNA U206, registration: N8076Z
Injuries: 1 Uninjured.

NTSB investigators used data provided by various entities, including, but not limited to, the Federal Aviation Administration and/or the operator and did not travel in support of this investigation to prepare this aircraft accident report.

The pilot reported that during the landing flare at an unpublished dirt airstrip, he entered a "low level [aerodynamic] stall." He further reported that due to the aerodynamic stall, and a "small rise" on the runway, the airplane touched down hard. During the landing roll, the pilot reported that the fuel "belly tank" installed under the fuselage separated from the airplane and the fuselage sustained substantial damaged. 

The pilot did not report any mechanical malfunction or failure with the airplane that would have precluded normal operation.

The National Transportation Safety Board determines the probable cause(s) of this accident as follows:
The pilot's exceedance of the critical angle of attack during the landing flare, which resulted in an aerodynamic stall and a hard landing.

NTSB Identification: ANC93LA038
The docket is stored in the Docket Management System (DMS). Please contact Records Management Division
Accident occurred Sunday, February 28, 1993 in WILLOW, AK
Probable Cause Approval Date: 06/30/1994
Aircraft: CESSNA U206A, registration: N8076Z
Injuries: 2 Uninjured.

NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.

THE PILOT IN COMMAND WAS TAXIING THE AIRPLANE FOR TAKEOFF AND DID NOT SEE THE DOUBLE SNOW MACHINE TRACKS IN THE SNOW. THE AIRPLANE'S NOSE BOUNCED UP WHEN IT CROSSED THE TRACKS AND THE PILOT PUSHED THE NOSE BACK DOWN. THE NOSE WHEEL SKI TIP DUG INTO THE SOFT SNOW AND THE AIRPLANE'S NOSE GEAR COLLAPSED.

The National Transportation Safety Board determines the probable cause(s) of this accident as follows:
THE ABRUPT AIRCRAFT HANDLING BY THE PILOT IN COMMAND. FACTORS WERE THE COLLAPSE OF THE NOSE GEAR AND THE SOFT, SNOW COVERED TERRAIN.

On February 28, 1993, at 1800 Alaska standard time, a wheel ski equipped Cessna 206 airplane, N8076Z, registered to and operated by the Pilot in Command, collapsed its nose gear during taxi for takeoff on Kashwitna Lake located near Willow, Alaska. The personal flight, operating under 14 CFR Part 91, had departed Elmendorf AFB, Alaska, and the destination was Kashwitna Lake and return to Elmendorf. A visual flight rules flight plan was in effect and visual meteorological conditions prevailed. The Airline Transport certificated pilot and the one passenger were not injured, and the airplane received substantial damage.

According to the Pilot, he was taxiing at 15 to 20 knots when the airplane taxied over double snow machine tracks. He stated that the tracks were difficult to see. The nose of the airplane came off the ground and when he pushed the nose back on the ground the toe of the nose wheel ski dug into the soft snow, caused the airplane to turn to the right abruptly, and collapsed the nose gear. The airplane nosed up and struck the propeller and left wing on the snow.

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