Narrative:

I was the PIC and PNF of air carrier X flight X on may/fri/00. During IMC departure climb from seoul south korea (rkss) passing FL145 on airway B576 between osn VOR and namja intersection, a TCASII TA was displayed on our primary flight displays. We were flying an MD11F. The TA indicated a descending target 3800 ft above our climbing altitude at our 12 O'clock position, slightly right of our track. I instructed the first officer, who was flying the aircraft, to reduce his rate of climb. Almost immediately with his reaction to my command, seoul departure control called with instructions to 'level at FL160 (we were now above FL155), traffic 12 O'clock position, 2000 ft above' (approximately statement). Due to the rapid rate of head-on closure displayed by TCASII, I instructed the first officer to turn left. Almost simultaneously we received an RA with a command to descend and a call from the ATC controller to 'turn left to 150 degrees.' we then received a TCASII command to 'climb' which we did. ATC made 1 or 2 calls concerning our heading (we had not yet attained 150 degrees) which were not answered due to high workload and stress. The TCASII RA ceased and ATC gave us a vector back to B-576 and clearance to climb to FL350. I asked ATC what the other traffic was and was told that it was a 'false target.' I replied that I was going to file a near miss report and again queried them about the traffic. After a series of short radio exchanges, we were informed that the opposing traffic was an foreign military F16, call sign XXX. At no time did we hear any radio calls between ATC and the F16. Civilian ATC apparently has no control over foreign military traffic transiting the seoul area. B-576 is the major airway for traffic entering/exiting seoul to/from southeast asia. Conflicts such as this are on-going. In yrs past, osan air base ATC controled all flts within the seoul area. Since this has stopped events such as this are common. The result inevitably will be loss of life due to midair collision. The united states department of state and/or ICAO must rectify this situation.

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Original NASA ASRS Text

Title: FLC OF A CARGO MD11 TOOK EVASIVE ACTION IN RESPONSE TO A TCASII RA CAUSED BY A FOREIGN GOV MIL F16. THE FO DEP CTL HAS NO CTL OVER FOREIGN MIL OPS. THEREFORE, CTLR DID TURN AND LEVELOFF RPTR'S ACFT BUT STATED OVER THE RADIO THAT IT WAS A FALSE TARGET.

Narrative: I WAS THE PIC AND PNF OF ACR X FLT X ON MAY/FRI/00. DURING IMC DEP CLB FROM SEOUL S KOREA (RKSS) PASSING FL145 ON AIRWAY B576 BTWN OSN VOR AND NAMJA INTXN, A TCASII TA WAS DISPLAYED ON OUR PRIMARY FLT DISPLAYS. WE WERE FLYING AN MD11F. THE TA INDICATED A DSNDING TARGET 3800 FT ABOVE OUR CLBING ALT AT OUR 12 O'CLOCK POS, SLIGHTLY R OF OUR TRACK. I INSTRUCTED THE FO, WHO WAS FLYING THE ACFT, TO REDUCE HIS RATE OF CLB. ALMOST IMMEDIATELY WITH HIS REACTION TO MY COMMAND, SEOUL DEP CTL CALLED WITH INSTRUCTIONS TO 'LEVEL AT FL160 (WE WERE NOW ABOVE FL155), TFC 12 O'CLOCK POS, 2000 FT ABOVE' (APPROX STATEMENT). DUE TO THE RAPID RATE OF HEAD-ON CLOSURE DISPLAYED BY TCASII, I INSTRUCTED THE FO TO TURN L. ALMOST SIMULTANEOUSLY WE RECEIVED AN RA WITH A COMMAND TO DSND AND A CALL FROM THE ATC CTLR TO 'TURN L TO 150 DEGS.' WE THEN RECEIVED A TCASII COMMAND TO 'CLB' WHICH WE DID. ATC MADE 1 OR 2 CALLS CONCERNING OUR HEADING (WE HAD NOT YET ATTAINED 150 DEGS) WHICH WERE NOT ANSWERED DUE TO HIGH WORKLOAD AND STRESS. THE TCASII RA CEASED AND ATC GAVE US A VECTOR BACK TO B-576 AND CLRNC TO CLB TO FL350. I ASKED ATC WHAT THE OTHER TFC WAS AND WAS TOLD THAT IT WAS A 'FALSE TARGET.' I REPLIED THAT I WAS GOING TO FILE A NEAR MISS RPT AND AGAIN QUERIED THEM ABOUT THE TFC. AFTER A SERIES OF SHORT RADIO EXCHANGES, WE WERE INFORMED THAT THE OPPOSING TFC WAS AN FOREIGN MIL F16, CALL SIGN XXX. AT NO TIME DID WE HEAR ANY RADIO CALLS BTWN ATC AND THE F16. CIVILIAN ATC APPARENTLY HAS NO CTL OVER FOREIGN MIL TFC TRANSITING THE SEOUL AREA. B-576 IS THE MAJOR AIRWAY FOR TFC ENTERING/EXITING SEOUL TO/FROM SE ASIA. CONFLICTS SUCH AS THIS ARE ON-GOING. IN YRS PAST, OSAN AIR BASE ATC CTLED ALL FLTS WITHIN THE SEOUL AREA. SINCE THIS HAS STOPPED EVENTS SUCH AS THIS ARE COMMON. THE RESULT INEVITABLY WILL BE LOSS OF LIFE DUE TO MIDAIR COLLISION. THE UNITED STATES DEPT OF STATE AND/OR ICAO MUST RECTIFY THIS SIT.

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.