MARK IS THE OWNER of a beautiful Cessna 185 Skywagon based in the San Francisco Bay area. Awhile back, Mark and his wife travelled to Minden, Nevada, in this airplane to visit with Mark's mother-in-law. A few days later, they returned to the airport intending to fly home. But when Mark started the Skywagon's engine-a Continental 10-520-he saw just about the last thing a pilot wants to see: The oil pressure gauge never budged from the zero mark.
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