ACR X EQUIP PREFIX ON ACFT NOT FILED. ACFT TCASII EQUIPPED.

Narrative

DURING A PERIOD OF MODERATE TFC; WHILE TRAINING WAS TAKING PLACE; ACR X WAS BEING VECTORED FOR THE VISUAL APCH RWY 32 TO FOLLOW AN MLT. THE DEVELOPMENTAL ISSUED THE MLT TFC TO ACR X. THE PLT REPLIED; 'I'VE GOT HIM ON TCASII.' UP TO THIS POINT THE DEVELOPMENTAL AND I WERE UNAWARE THAT ACR X WAS TCASII EQUIPPED. NO NOTATION ON THE FLT PLAN/STRIP OR BY THE PLT. THE LAST THING NEEDED TO BE TALKED ABOUT ON A BUSY CTL FREQ IS THE EQUIP IN THE AIRPLANE. JUST PRIOR TO THE LAST EVENT; AN ATX WAS ISSUED TFC 1000 FT ABOVE HIM. HIS REPLY WAS ALSO; 'I'VE GOT HIM ON TCASII.' HOWEVER; WE WERE AWARE OF THIS ACFT EQUIP. STRESS LEVELS INCREASE EVERY TIME AN ACFT ADVISES OF SOME TYPE OF TCASII EVENT; EITHER BECAUSE OF AN RA OR TFC OBSERVED ON TCASII. SOME QUESTION ASKED IN A BUSY CTLR'S MIND: IS THAT AN RA? IS THE ACFT GOING TO CLB INTO ANOTHER ACFT? IS THE ACFT GOING TO CLB INTO ANOTHER CTLR'S AIRSPACE? DOES THE CREW HAVE THE TFC IN SIGHT? ETC. STANDARD PHRASEOLOGY MUST BE DEVELOPED AND USED! 'NEGATIVE CONTACT' IS THE ONLY WAY TO INFORM A CTLR THAT TFC IS NOT IN SIGHT. NOT PHRASES LIKE; 'LOOKING;' 'NO JOY;' OR 'I'VE GOT HIM ON TCASII.' IMAGINE THE PROBS IF THE TCASII OF THE LAST XMISSION IS CLIPPED OR BLOCKED. IN ADDITION; COMPANIES AND PLTS HAVE TO ENSURE THE PROPER EQUIP PREFIXES AND SUFFIXES ARE FILED. THE COMPANY ONLY HAS 1 TCASII EQUIPPED ACFT IN ITS FLEET. THEREFORE; THE PROPER PREFIX IS NEVER FILED. PLTS ARE LACKING IN THEIR RESPONSIBILITY BY NOT INFORMING THE CTLR OF A CHANGE IN EQUIP.