Korean Airlines Flight 801Wednesday August 6, 1997
The aircraft crashed into Nimitz Hill, 3 miles short of Runway 06R, while making a non-precision approach in heavy rain to A.B. Won Guam International Airport. The runway glide slope system was inoperative. In addition, the Minimum Safe Altitude Warning system (MSAW) was also not working due to a software problem. The captain’s failure to adequately brief and execute the non-precision approach and the first officer's and flight engineer's failure to effectively monitor and cross-check the captain’s execution of the approach. Contributing to these failures were the captain's fatigue and Korean Air's inadequate flight crew training. Contributing to the accident was the Federal Aviation Administration's (FAA) intentional inhibition of the MSAW at Guam and the agency's failure to adequately manage the system.