Narrative:

Maneuvering VFR in VMC, responded to TCASII RA, visually acquired target -- no factor. During approach into ict, ATC asked us to call ATC on landline. They simply wanted us to consider staying in radio contact while maneuvering. Supplemental information from acn 426244: routine test flight performed. Departed ict to west and once out of class C, radar service canceled. Continued VFR above class C at 10500 ft, in which maneuvering flight from west to east and east to west tracks with interim turns to north and south. Our TCASII was on and functioning and we had received TA alerts for a couple different aircraft. Visual contact was made associated with all TA targets, with closest encounter estimated at 600 ft vertical and 1 1/2 mi horizontal. At no time was an RA received. Testing continued for another 15 mins, at which time radar service re-established. The initial controller then informed us that TRACON requests we give them a phone call after landing. Called TRACON later that evening and the attending controller informed me that his supervisor was concerned that apparently the 600 ft and 1 1/2 mi encounter aircraft had reported they initiated evasive action to avoid our aircraft. It was unknown whether the other aircraft was using TCASII, but the controller informed me it was a falcon. The controller said after the falcon reported evasive action, approach began tracking us. Basically the controller suggested that we may want to maintain radio contact/radar service with approach even though we were VFR and outside of class C and they would be more than happy to provide additional traffic separation. I thanked him for the information. I feel that in hindsight, maintaining TA's is the best course of action, but I also feel ict approach could have provided the traffic separation for the falcon pilot who was in contact with ict. We were perfectly legal in our airspace and within VFR guidelines.

Google
 

Original NASA ASRS Text

Title: C750 FLC REACTS TO MULTIPLE TCASII ALERTS DURING TEST FLT MANEUVERING. PIC ASKED TO CALL TRACON ON LNDG TO DISCUSS SIT.

Narrative: MANEUVERING VFR IN VMC, RESPONDED TO TCASII RA, VISUALLY ACQUIRED TARGET -- NO FACTOR. DURING APCH INTO ICT, ATC ASKED US TO CALL ATC ON LANDLINE. THEY SIMPLY WANTED US TO CONSIDER STAYING IN RADIO CONTACT WHILE MANEUVERING. SUPPLEMENTAL INFO FROM ACN 426244: ROUTINE TEST FLT PERFORMED. DEPARTED ICT TO W AND ONCE OUT OF CLASS C, RADAR SVC CANCELED. CONTINUED VFR ABOVE CLASS C AT 10500 FT, IN WHICH MANEUVERING FLT FROM W TO E AND E TO W TRACKS WITH INTERIM TURNS TO N AND S. OUR TCASII WAS ON AND FUNCTIONING AND WE HAD RECEIVED TA ALERTS FOR A COUPLE DIFFERENT ACFT. VISUAL CONTACT WAS MADE ASSOCIATED WITH ALL TA TARGETS, WITH CLOSEST ENCOUNTER ESTIMATED AT 600 FT VERT AND 1 1/2 MI HORIZ. AT NO TIME WAS AN RA RECEIVED. TESTING CONTINUED FOR ANOTHER 15 MINS, AT WHICH TIME RADAR SVC RE-ESTABLISHED. THE INITIAL CTLR THEN INFORMED US THAT TRACON REQUESTS WE GIVE THEM A PHONE CALL AFTER LNDG. CALLED TRACON LATER THAT EVENING AND THE ATTENDING CTLR INFORMED ME THAT HIS SUPVR WAS CONCERNED THAT APPARENTLY THE 600 FT AND 1 1/2 MI ENCOUNTER ACFT HAD RPTED THEY INITIATED EVASIVE ACTION TO AVOID OUR ACFT. IT WAS UNKNOWN WHETHER THE OTHER ACFT WAS USING TCASII, BUT THE CTLR INFORMED ME IT WAS A FALCON. THE CTLR SAID AFTER THE FALCON RPTED EVASIVE ACTION, APCH BEGAN TRACKING US. BASICALLY THE CTLR SUGGESTED THAT WE MAY WANT TO MAINTAIN RADIO CONTACT/RADAR SVC WITH APCH EVEN THOUGH WE WERE VFR AND OUTSIDE OF CLASS C AND THEY WOULD BE MORE THAN HAPPY TO PROVIDE ADDITIONAL TFC SEPARATION. I THANKED HIM FOR THE INFO. I FEEL THAT IN HINDSIGHT, MAINTAINING TA'S IS THE BEST COURSE OF ACTION, BUT I ALSO FEEL ICT APCH COULD HAVE PROVIDED THE TFC SEPARATION FOR THE FALCON PLT WHO WAS IN CONTACT WITH ICT. WE WERE PERFECTLY LEGAL IN OUR AIRSPACE AND WITHIN VFR GUIDELINES.

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.