NTSB Identification: DEN07CA007.
The docket is stored in the Docket Management System (DMS). Please contact Records Management Division
Accident occurred Wednesday, October 11, 2006 in Delta, CO
Probable Cause Approval Date: 01/31/2007
Aircraft: Huff Acro Sport I, registration: N511SH
Injuries: 1 Minor.

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.

A crew was working on the parallel taxiway near the runway edge. The pilot taxied past the construction area and took off on runway 21. After about 30 minutes of flying, the pilot returned to the airport and made some touch-and-go landings. Another airplane entered the traffic pattern and announced he would be landing in the opposite direction on runway 03. The pilot yielded and also landed on runway 03. To avoid the construction crew, he maneuvered the airplane to the left of runway centerline. He noted that his airplane was "a short-coupled biplane," and that forward visibility in a conventional (3-point) attitude was limited. This caused him to get too close to the runway edge, and the left main landing gear went off the left side of the runway and into soft, muddy soil. The airplane swerved to the left, went through some high sage brush, struck a large rock, spun around and nosed down.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

the pilot's failure to select a touchdown point a safe distance from the construction crew, and his failure to maintain directional control of the airplane. Contributing factors in this accident included the pilot's limited forward visibility when the airplane was in a 3-point attitude, the soft terrain, and the rock.

Full narrative available

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