NTSB Identification: WPR10FA131
14 CFR Part 91: General Aviation
Accident occurred Monday, February 08, 2010 in Redlands, CA
Probable Cause Approval Date: 03/16/2011
Aircraft: YAKOVLEV YAK 52, registration: N52VY
Injuries: 2 Fatal.

NTSB investigators either traveled in support of this investigation or conducted a significant amount of investigative work without any travel, and used data obtained from various sources to prepare this aircraft accident report.

Witnesses reported that the pilot completed several loops and other aerobatic maneuvers over the course of about 10 minutes. The airplane then began a spin from a low altitude and continued in a "corkscrew" path until colliding with the ground. Ground scar analysis and wreckage fragmentation disclosed that the airplane impacted in a slight nose-low attitude at a relatively low airspeed, an indication that the pilot was likely recovering from the spin at the time of impact. An examination of the wreckage revealed that all major components were accounted for at the accident site; flight control continuity could not be established due to the extensive fragmentation of the wreckage. The pilot had amassed 21.1 hours flight time in the make/model airplane, which included 7.7 hours of dual aerobatic training and 5.2 hours of solo aerobatic time.

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

The pilot's failure to maintain aircraft control and altitude sufficient to recover from a low-level aerobatic maneuver.

Full narrative available

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