That's when the 69-year-old test pilot found a residential airpark at the Pine Mountain Lake Airport. There are about 90 homes with hangars that have deeded access to use the taxiways and runway at the Tuolumne County airport in the residential airpark. As a test pilot, Sobczak works primarily out of the San Francisco International Airport (SFO). Because the Tuolumne County airport has no control tower, residents of the airpark use a common traffic advisory frequency so pilots can broadcast their position and intended flight path. Part of Sobczak's deed includes access to the Tuolumne County airport.

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