[2] In 1945 Peach resumed law studies at Cornell University, and took a part-time pilot position with fledgling Robinson Airlines, then operating two Fairchild F-24s and two Cessna T-50s in scheduled air taxi service between Ithaca and New York.
Within a few years Peach was executive vice president and general manager, Robinson had grown in route structure, acquired DC-3 aircraft to handle the increasing passenger load, and changed its name to Mohawk Airlines.
By 1970 the national economy was in a full-blown recession and the situation at Mohawk, with Peach on the sidelines, was becoming desperate, at which point, feeling threatened by the shifting of less-travelled routes to commuter airlines, Mohawk's pilots began a long and ultimately destructive strike, demanding the right to veto the shifting of routes, which management refused.
Within weeks Mohawk was forced to inform creditors it was unable to meet payments, and efforts to restructure financial arrangements began.
[6] On 20 April 1971 Robert Peach was found dead from a self-inflicted gunshot wound, at his home in Clinton, New York, aged fifty-one.