Narrative:

On may/wed/97, I was the lead of a 2-PLANE flight which originated at lambert field, st louis, mo. Call sign: aircraft X. I was the pilot of an FA18 and my wingman was an F15. After landing we were notified that a near miss with a civilian twin engine aircraft had been reported to our operating base. After completing our work in the area, which included high altitude work with ZKC on 361.4 MHZ, we returned to ZKC on 373.5 MHZ. For radar flight following per our LOA, and advised them that we would proceed to the initial approach fix at scott AFB, il, for a practice approach and would return to their area. We departed airspace south of lambert at 7500 ft MSL (easterly course) to transit below the st louis approach corridor. Once clear, we climbed under VMC, attempting contact with ZKC on 373.5 without success. I made a call in the blind to ZKC, then switched to st louis approach on 281.5 MHZ, and initiated a climb to 11500 ft MSL. We proceeded directly to the scott AFB, high TACAN IAF. Leveling at 11500 ft MSL, my wingman visually acquired a twin engine civil aircraft off our right wing which appeared to be in a climb. Position: stl 133 degrees/70 KTS. Time: approximately AC15 pm. At the time, we were operating under VFR, with transponder set to the assigned XXXX squawk. No evasive action was initiated. Neither of us had sight of the other aircraft until this point, were in VMC, and level at 11500 ft MSL (easterly course) and monitoring ATC controling frequencys the entire time. We were never advised of conflicting traffic, IFR or VFR.

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Original NASA ASRS Text

Title: A FORMATION FLT OF 2 MIL FIGHTERS AT 11500 FT COMES WITHIN 3000 FT HORIZLY OF A TWIN ENG ACFT IN CLB. FIGHTERS WERE ON A VFR FLT ADVISORY SVC IN ACCORD WITH A LOA TYPE OP, MONITORING STL APCH CTL ON A UHF FREQ.

Narrative: ON MAY/WED/97, I WAS THE LEAD OF A 2-PLANE FLT WHICH ORIGINATED AT LAMBERT FIELD, ST LOUIS, MO. CALL SIGN: ACFT X. I WAS THE PLT OF AN FA18 AND MY WINGMAN WAS AN F15. AFTER LNDG WE WERE NOTIFIED THAT A NEAR MISS WITH A CIVILIAN TWIN ENG ACFT HAD BEEN RPTED TO OUR OPERATING BASE. AFTER COMPLETING OUR WORK IN THE AREA, WHICH INCLUDED HIGH ALT WORK WITH ZKC ON 361.4 MHZ, WE RETURNED TO ZKC ON 373.5 MHZ. FOR RADAR FLT FOLLOWING PER OUR LOA, AND ADVISED THEM THAT WE WOULD PROCEED TO THE INITIAL APCH FIX AT SCOTT AFB, IL, FOR A PRACTICE APCH AND WOULD RETURN TO THEIR AREA. WE DEPARTED AIRSPACE S OF LAMBERT AT 7500 FT MSL (EASTERLY COURSE) TO TRANSIT BELOW THE ST LOUIS APCH CORRIDOR. ONCE CLR, WE CLBED UNDER VMC, ATTEMPTING CONTACT WITH ZKC ON 373.5 WITHOUT SUCCESS. I MADE A CALL IN THE BLIND TO ZKC, THEN SWITCHED TO ST LOUIS APCH ON 281.5 MHZ, AND INITIATED A CLB TO 11500 FT MSL. WE PROCEEDED DIRECTLY TO THE SCOTT AFB, HIGH TACAN IAF. LEVELING AT 11500 FT MSL, MY WINGMAN VISUALLY ACQUIRED A TWIN ENG CIVIL ACFT OFF OUR R WING WHICH APPEARED TO BE IN A CLB. POS: STL 133 DEGS/70 KTS. TIME: APPROX AC15 PM. AT THE TIME, WE WERE OPERATING UNDER VFR, WITH XPONDER SET TO THE ASSIGNED XXXX SQUAWK. NO EVASIVE ACTION WAS INITIATED. NEITHER OF US HAD SIGHT OF THE OTHER ACFT UNTIL THIS POINT, WERE IN VMC, AND LEVEL AT 11500 FT MSL (EASTERLY COURSE) AND MONITORING ATC CTLING FREQS THE ENTIRE TIME. WE WERE NEVER ADVISED OF CONFLICTING TFC, IFR OR VFR.

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.