TRUCKEE (AP) — Air rescue crews are searching Northern California mountains for a single-engine plane reported missing nearly a week ago after it failed to land as scheduled.

The Socata TB-20 with two people aboard left the Truckee-Tahoe Airport near the Nevada border April 17.

It was expected to land about 180 miles away at the Petaluma Municipal Airport north of San Francisco.

Family members reported the four-seat plane missing and a search was started by the Civil Air Patrol, the all-volunteer civilian auxiliary of the U.S. Air Force.

Maj. Kathy Johnson said Sunday that teams in three planes and on the ground are scouring a region 18 miles northwest of Truckee. Officials zoned in on that area through radar tracking and cell phone forensics.

Weather hampered aerial operations during the week, but air and ground searches resumed Friday.

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