He had been promoted to Captain on the Boeing 737 in 1996 and transferred to the 747-400 in 2001. He had initially flown in the Air Force before joining Asiana as a First Officer in 1991. The 52 year-old Captain was found to have 14,123 total flying hours, which included 6869 on the 747-400. According to ACARS transmissions, the ELT was activated but its signal was not received and it was found that was of a type which was inoperative in water. Recordings of ACARS messaging, ATC radar and R/T communications with the aircraft were available. No ULB transmissions were detected in the area where significant amounts of floating and submerged wreckage was found and recovered and, despite extensive searches, neither the FDR nor the CVR were found.
The accident occurred in international waters and the Investigation was carried out by the ARAIB (Aircraft and Railway Accident Investigation Board) of the State of the Operator, South Korea. An emergency descent and diversion to Jeju were initiated but after indications from crew radio calls that it was becoming difficult to retain control of the aircraft, there was no further contact and wreckage from the aircraft was subsequently found in the sea.
On 28 July 2011, a Boeing 747-400F (HL7604) being operated by Asiana on a scheduled cargo flight from Incheon to Shanghai Pudong as AAR 991 declared an emergency due to a main deck fire whilst in the cruise at F元40 in day VMC approximately 50 minutes after take off.
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