Authorities received a call about the crash at 2:41 p.m. Saturday, but the FAA says it happened Friday night.
The pilot, who authorities believe was the only person on board, was flying from Hayward to Lincoln, California.
"On Saturday, a family member of the pilot reported the aircraft was overdue after it had not landed as scheduled," officials said.
According to the FAA, the single-engine Mooney M20 crashed into a hillside two miles southwest of the mountain's peak.
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Fire crews found the wreckage near Summit Road, where the aircraft burned after crashing.
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The fire department requested the coroner at the scene.
The FAA and NTSB will investigate, with NTSB acting as the lead investigative agency.
A spokesperson tells ABC7 News,"It typically takes the NTSB a year or more to determine a probable cause for an accident."
This is a developing news story, stay with ABC7 News for updates.