BOISE – The wreckage of a small plane carrying five people, including a Silicon Valley executive, was found Friday after vanishing in the central Idaho mountains on Dec. 1, the Valley County sheriff’s office said. There were no survivors.

Sheriff’s Lt. Dan Smith said Friday an incoming storm may delay recovery efforts.

The single-engine plane was occupied by 51-year-old pilot Dale Smith, a software executive from San Jose, Calif.; his son, Daniel Smith, and his wife, Sheree Smith; and daughter Amber Smith with her fiance, Jonathon Norton.

The plane was flying from Eastern Oregon, where the family had been spending the Thanksgiving holiday, to Montana, where Daniel and Sheree Smith live, on Dec. 1 when it disappeared in the mountains 150 miles northeast of Boise.

Dale Smith reported engine trouble and sought information about a backcountry landing strip where he hoped to put the plane down safely.

Authorities had suspended the official search for the aircraft in mid-December, but volunteers, including friends and family, continued with a private search.

According to Federal Aviation Administration records, Smith, an executive and co-founder of San Jose-based SerialTek, obtained his pilot’s license in 2005.

Rand Kriech, who co-founded SerialTek with Smith in 2007, said he got a call Friday evening, telling him the wreckage had been found.

The private search involved hundreds of online volunteers analyzing satellite images of the terrain, looking for clues like damaged trees that might indicate a crash site, and posting that information back to a search website, Kriech said in a telephone interview.

Search teams then checked promising sites.

“They were just getting ready to close up today, checking one last site – and sure enough,” Kriech said.

“It’s simply amazing that so many people were volunteering so much of their time to bring the family peace,” he said. “It’s just really hard to get closure if you don’t have any information.”