CAPT OF AN MLG ACR ACFT HAD TO MAKE A MISSED APCH DUE TO AN UNSTABLE APCH CAUSED BY TURNING INSIDE THE OM AND UNDERSHOOTING THE TURN TO FINAL DUE TO STRONG XWINDS.

Narrative

FLYING AT 2000 FT MSL ON BASE LEG FOR ILS TO RWY 4 AT ROC; NY; I NOTICED DME FROM ARPT WAS ABOUT 5.5 NM; SO I SLOWED DOWN TO ABOUT 180 KTS SINCE I COULD SEE A VERY TIGHT TURN TO INTERCEPT LOC COMING. WHEN CTLR TURNED US TO APCH HDG WE WERE JUST INSIDE THE MARKER BEACON BUT STILL HAD A FULL FLY L DEFLECTION ON THE LOC. I GUESS THE STRONG NW WIND AND TIGHT TURN HAD CAUSED THE UNDERSHOOT. COPLT MENTIONED IT; AND CTLR SAID 'YOU'RE A LITTLE R OF THE LOC; CAN YOU MAKE IT; OR DO YOU WANT ME TO VECTOR YOU BACK AROUND.' MY FIRST MISTAKE WAS TO SAY WE COULD MAKE IT. I TOOK AN AGGRESSIVE 30 DEG INTERCEPT AT THE LOC AS THE GS FELL AWAY FROM US. AS SOON AS THE LOC CAME ALIVE; I STARTED DOWN AT MAX RATE TO TRY TO CATCH THE GS. I ALSO TURNED BACK TOWARD THE LOC HDG; FEARING I WOULD OVERSHOOT. THIS WAS MISTAKE #2. WITH THE STRONG WIND; THE LOC; JUST INSIDE 1 DOT; BEGAN TO DRIFT TO L RAPIDLY AGAIN. JUST WHEN I WAS ABOUT TO GIVE UP; AT ABOUT 900 FT AGL AND VERY UNSTABLE IN THE APCH; THE GPWS GAVE A 'PULL UP' WARNING THAT 'DECIDED FOR ME' WHAT TO DO. I MADE AN IMMEDIATE GAR. MISTAKE #3 WAS POOR PITCH CTL IN THE GAR WHICH ALMOST CAUSED A FLAP OVERSPD AS I DIDN'T HAVE THE NOSE HIGH ENOUGH. FEARING AN OVERSPD; I REDUCED PWR; BUT AFRAID TO GO TO UNSPOOLED CONDITION; I ALSO PULLED UP SPD BRAKE WHICH CAUSED ACFT TO BUFFET ABRUPTLY WITH FLAPS AT 15 DEGS. THIS WAS THE LAST MISTAKE FOR THE FLT. WE WERE VECTORED AROUND FOR ANOTHER SUCCESSFUL TRY AT THE ILS TO RWY 4 AT ROC.