Searchers found no sign of it after planes repeatedly criss-crossed the region, and last week the official search was called off. The plane was on a short flight over rugged terrain between Swikshak Lagoon and King Salmon.
The father of McLeod, Steve McLeod, a retired police officer who traveled to Alaska from Florida, said Monday that the reward has been increased to $65,000 from $15,000.
Anyone with information about the plane is asked to call the National Park Service at 1-907-246-3305, or the Alaska State Troopers at 1-907-246-3346.
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