TCASII RA CAUSES MLG FLC TO DEVIATE FROM CLRNC. ALTDEV ALT UNDERSHOT. POTENTIAL CONFLICT.

Narrative

THE TFC THAT CAUSED THE RA WAS VFR. WE WERE DSNDING ON V- 226 S OF CIP VOR AND THE CLRNC WAS TO CROSS GRACE AT 10000 FT AND 250 KTS. THE CTR CTLR WAS WORKING THE VFR TFC AS WELL AS US. THE CTLR TOLD THE VFR THAT HE WAS CLBING INTO AN ARR CORRIDOR AND WAS IN CONFLICT WITH SEVERAL JETS DSNDING INTO PIT. THE CTLR RECOMMENDED A TURN OF 10 DEGS TO AVOID THE ARR TFC. THE VFR WENT BY THE AIRPLANE IN FRONT OF US EVIDENTLY WITHOUT A PROB. AT THIS TIME; WE NOTICED THE TFC ON TCASII. THE TFC WAS AT 12 O'CLOCK ABOUT 1000 FT BELOW US AND CLBING. THE CTLR NEVER ISSUED THE TFC TO US. AS WE WATCHED THE TFC APCH; I EXPECTED THE CTLR TO GIVE ONE OF US A VECTOR; BUT HE DID NOT. NEXT; WE GOT A TA; WHICH WAS NOT A SURPRISE AT THIS POINT. I TOLD THE COPLT TO BE PREPARED FOR AN RA. TCASII ISSUED AN RA TO CLB WITHIN SECONDS. SO WE BEGAN THE CLB MANEUVER AT APPROX 11000 FT; WE GOT A CLR OF CONFLICT ADVISORY AT 12000 FT. WE ADVISED THE CTR CTLR THAT WE WERE CLBING IN RESPONSE TO AN RA. HIS RESPONSE WAS THAT THE TFC WAS CLR TO THE R OF US. I TOLD HIM THAT WE WERE STILL REQUIRED TO RESPOND TO THE RA. HE SAID OKAY AND THAT HE UNDERSTOOD. SHORTLY AFTER THE CONFLICT; HE HANDED US OFF TO PIT APCH. I TOLD THE APCH CTLR THAT WE WOULD BE UNABLE TO CROSS GRACE AT 10000 FT AND 250 KTS DUE TO RESPONDING TO THE PREVIOUSLY ISSUED RA. I CALLED PIT APCH CTL ON THE TELEPHONE AFTER WE LANDED TO MAKE SURE THAT THEY WERE FULLY AWARE OF WHAT HAPPENED; AND TO EXPLAIN WHY WE DID NOT CROSS GRACE AT OUR ASSIGNED SPD AND ALT. THE SUPVR SAID THAT THERE WAS NO PROB IN RELATION TO THE EVENT. HE SAID THAT THEY SAW THE CONFLICT BUT; OF COURSE; WERE NOT WORKING EITHER OF US AT THE TIME.