Narrative:

Air carrier X pgum-rkss, jul/xx/95, B-727-200, 2 pilots, 1 flight engineer, 4 flight attendants, 74 passenger. All crew and passenger seated, seat belt sign on, all in-range checklists completed, aircraft in level stabilized flight at assigned altitude of 8000 ft, heading 290 degrees assigned, airspeed 210 KTS assigned under seoul approach frequency 119.1 (monitoring 121.5 #2 radio) with seoul ATC, over angang (sel frequency 115.1) VOR, TCASII RA (solid red) 'climb', within 0.3 seconds. PF climbed aircraft 2'g pull-up, go around power, 3 seconds later 'increased climb' directed pitch increased to 25 degrees nose up and maximum power. 6 seconds later 'clear of conflict.' visual identify of intruder aircraft by cockpit crew not observed. Passenger on aircraft right mid-cabin window seat forward of right wing visually idented intruder aircraft at '30 meters below -- brown and white air carrier Y turbo jet.' maximum altitude during avoidance maneuver 9300 ft, seoul approach notified, returned to assigned altitude, normal approach and land. Whiskey 1 departure kimpo altitude bust by air carrier X. Callback conversation with reporter revealed the following information: reporter stated he was the first officer PF. Second aircraft was a B767 foreign air carrier. When RA was received reporter stated he made a very aggressive climb and was told by the captain he was over reacting. Passenger observing near midair collision was company pilot. B767 went below aircraft 100 ft. Flight crew ATC review TRACON supervisor stated foreign air carrier had busted the SID altitude restr.

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Original NASA ASRS Text

Title: ACR X TCASII RA HAD NMAC LTSS WITH ACR Y ALTDEV.

Narrative: ACR X PGUM-RKSS, JUL/XX/95, B-727-200, 2 PLTS, 1 FE, 4 FLT ATTENDANTS, 74 PAX. ALL CREW AND PAX SEATED, SEAT BELT SIGN ON, ALL IN-RANGE CHKLISTS COMPLETED, ACFT IN LEVEL STABILIZED FLT AT ASSIGNED ALT OF 8000 FT, HDG 290 DEGS ASSIGNED, AIRSPD 210 KTS ASSIGNED UNDER SEOUL APCH FREQ 119.1 (MONITORING 121.5 #2 RADIO) WITH SEOUL ATC, OVER ANGANG (SEL FREQ 115.1) VOR, TCASII RA (SOLID RED) 'CLB', WITHIN 0.3 SECONDS. PF CLBED ACFT 2'G PULL-UP, GAR PWR, 3 SECONDS LATER 'INCREASED CLB' DIRECTED PITCH INCREASED TO 25 DEGS NOSE UP AND MAX PWR. 6 SECONDS LATER 'CLR OF CONFLICT.' VISUAL IDENT OF INTRUDER ACFT BY COCKPIT CREW NOT OBSERVED. PAX ON ACFT R MID-CABIN WINDOW SEAT FORWARD OF R WING VISUALLY IDENTED INTRUDER ACFT AT '30 METERS BELOW -- BROWN AND WHITE ACR Y TURBO JET.' MAX ALT DURING AVOIDANCE MANEUVER 9300 FT, SEOUL APCH NOTIFIED, RETURNED TO ASSIGNED ALT, NORMAL APCH AND LAND. WHISKEY 1 DEP KIMPO ALT BUST BY ACR X. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: RPTR STATED HE WAS THE FO PF. SECOND ACFT WAS A B767 FOREIGN ACR. WHEN RA WAS RECEIVED RPTR STATED HE MADE A VERY AGGRESSIVE CLB AND WAS TOLD BY THE CAPT HE WAS OVER REACTING. PAX OBSERVING NMAC WAS COMPANY PLT. B767 WENT BELOW ACFT 100 FT. FLC ATC REVIEW TRACON SUPVR STATED FOREIGN ACR HAD BUSTED THE SID ALT RESTR.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.