733667-001-021

SIMULATION #1 #1 The 11/18/86 is the date we entered on the display ourselves. The 0 2/24/38 i s the time we entered on the display, it is the time we started the plotting in the PVD. The other alpha-numerics on the display (JL1628 350) are a data block we entered on the first target. It means Japan Air 1628 at flight level 350. Fort Yukon is at the top center and Fairbanks is at the lower center. / SIMULATION #2 #2 Is the plotted positions of JL1628 at 0232Z. The JL1628 flight was in descent. The pilot stated the other object was descending in formation with him. I I SIMULAT ION t3 #3 This i s a lar ger picture of Simulation #1 and 2 combined. J SIMULATION #4 #4 Is the plotted positions after JL1628 has passed Fairbanks and makes a 360 turn. The pilot made the 360 towards the radar antenna and we get bad data for a couple of scans -about from where JL1628 goes through an EASTERLY heading until he rolls out on a SOUTHERLY heading. / I ts SIMULATION #5 JL1628 plotted positions from lost contact with the traffic. plotted position for JL1628 is approximately 0250Z and United abeam NENANA (ENN) until the pilot says he The little target to the EAST of the last the United flight at 290. Time was advised he had JL1628 in sight. J