At approximately 1224 Eastern Standard Time on 11 January 2008, a Boeing 737-200 aircraft, registered VH-OBN, was intercepting the localiser for an instrument landing system approach to runway 01, Brisbane Airport, Qld. The operating crew for the passenger flight included two flight crew (pilot in command (PIC) and copilot) and three cabin crew. The copilot was the handling pilot.
The copilot had reported to the PIC that he was feeling a bit uncomfortable. Shortly after, the copilot handed over control of the aircraft to the PIC and vacated the cockpit due to pain and discomfort.
The PIC continued the approach and landing, without the copilot. Following the landing, as the aircraft entered the taxiway, the copilot returned to the cockpit and resumed support duties until the aircraft reached the gate.
Following the event, the copilot was diagnosed with and received treatment for diverticulitis.