The hijacker/pilot says, "Now an easy bank to the right", but the exterior shot shows the plane banking to the left.
When Mike is working down in the "hell hole", multiple control cables can be seen hanging loose, indicating a non-flying (or even flyable) aircraft.
Air traffic control redirects the taxiing airplane from runway 24 to a different runway, runway 6. Runways 24 and 6 are the same runway, just in opposing directions.
The hijacker/pilot never releases the talk button during his mayday call and therefore would not be able to hear any response.