thumb|British Airways was one of the first customers for the RB211-powered 757.|alt=Side view of aircraft in flight with extended gear, against a grassy hill backdrop The prototype 757 rolled out of the Renton factory on January 13, 1982. The aircraft, equipped with engines, completed its maiden flight one week ahead of schedule on February 19, 1982. The first flight was affected by an engine stall, following indications of low oil pressure. After checking system diagnostics, company test pilot John Armstrong and co-pilot Lew Wallick were able to restart the affected engine, and the flight proceeded normally thereafter. Subsequently, the 757 embarked on a seven-day weekly flight test schedule. By this time, the aircraft had received 136 orders from seven carriers, namely Air Florida, American Airlines, British Airways, Delta Air Lines, Eastern Air Lines, Monarch Airlines, and Transbrasil.
thumb|British Airways was one of the first customers for the RB211-powered 757.|alt=Side view of aircraft in flight with extended gear, against a grassy hill backdrop The prototype 757 rolled out of the Renton factory on January 13, 1982. The aircraft, equipped with engines, completed its maiden flight one week ahead of schedule on February 19, 1982. The first flight was affected by an engine stall, following indications of low oil pressure. After checking system diagnostics, company test pilot John Armstrong and co-pilot Lew Wallick were able to restart the affected engine, and the flight proceeded normally thereafter. Subsequently, the 757 embarked on a seven-day weekly flight test schedule. By this time, the aircraft had received 136 orders from seven carriers, namely Air Florida, American Airlines, British Airways, Delta Air Lines, Eastern Air Lines, Monarch Airlines, and Transbrasil.