PLT OF AN SMA SEL ATX ACFT STARTED AN INST APCH WHEN THE WX WAS BELOW AUTHORIZED MINIMUMS.

Narrative

I WAS ENRTE TO MY DEST ARPT AND I WAS JUST HANDED OFF FROM THE ARTCC (CTLR NAME) TO CTR (WASHINGTON). I WAS GIVEN THE WX FOR MY DEST ARPT FOLLOWED BY RADAR VECTORS FOR THE ILS APCH INTO ROCKY MOUNT ARPT. I HEARD OUR COMPETITION ACR AHEAD OF ME ON THE APCH INTO ROCKY MOUNT. I BEGAN TO SET UP FOR THE APCH AND EVERYTHING SEEMED NORMAL EXCEPT THE #1 AND #2 NAV HEADS MOVED ERRATICALLY. I THOUGHT IT WAS BECAUSE I WAS STILL TOO FAR FROM THE LOC. OUR COMPETITION ACR GOT IN OK AND THEN I WAS CLRED FOR THE APCH. AS I BEGAN MY DSCNT; THE NAV NEEDLES BECAME ERRATIC AGAIN AND I IMMEDIATELY WENT MISSED APCH. I ADVISED FSS AND THEN TOLD CTR THAT MY NAV RADIOS WERE NOT WORKING PROPERLY. I ASKED FOR AN SAR APCH BUT CTR ADVISED ME THAT RALEIGH WAS BELOW MINIMUMS FOR THAT APCH. I KNEW THE WX WAS BETTER TOWARD THE S SO I ASKED IF NEW RIVER AIR STATION COULD TAKE ME. THEY SAID THEY COULD TAKE ME FOR THE PAR APCH. KNOWING I DIDN'T HAVE ANOTHER OPTION; I TOOK THE PAR APCH INTO NEW RIVER. MY BOSS CALLED ME THE NEXT DAY AND TOLD ME THE FAA HAD CALLED BECAUSE I SHOT THE APCH INTO ROCKY MOUNT WHEN IT WAS BELOW MINIMUMS; AND I SHOT THE PAR APCH INTO NEW RIVER AND IT WAS NOT AUTHORIZED IN OUR OPS SPECS. I FEEL SURE I HEARD CTR TELL ME THE VISIBILITY WAS 5/8 NOT 3/8. ALSO; SINCE OUR COMPETITION CARRIER SHOT THE APCH AND MADE IT IN JUST BEFORE ME; I SAW NO REASON TO BELIEVE IT WAS BELOW MINIMUMS. AFTER GOING MISSED APCH AND ADVISING CTR THAT MY NAV RADIOS WERE INOP; I THOUGHT THERE WAS NO DOUBT I WAS IN AN EMER SIT AND THE CTLR WAS AWARE OF THIS; ESPECIALLY SINCE HE TOLD ME HE WAS GIVING NO SPECIAL HANDLING. SUPPLEMENTAL INFO FROM ACN 231298: ON APCH INTO RWI; ZDC GAVE ME WX THAT WAS 3 HRS OLD. I THOUGHT HE SAID 200 FT; 5/8 MI VISIBILITY. I CALLED RWI FSS TO GET CURRENT ALTIMETER AND WX AND THEY GAVE ME 200 FT OVCST; 5/8 MI VISIBILITY (200 FT AND 1/2 MI VISIBILITY IS REQUIRED TO SHOOT APCH). I SHOT THE APCH AND LANDED WITHOUT ANY PROB. I BROKE OUT AT 300 FT AGL AND HAD AT LEAST 1/2 MI VISIBILITY. LORAN SHOWED 6/10 MI WHEN I HAD APCH LIGHTING IN SIGHT. ON DEP; I HAD TO WAIT FOR AN ACR AVIATION AIRPLANE ON THE APCH; HE WENT MISSED AND INFORMED RWI FSS THAT HIS GS WAS INOP AND HE DIVERTED TO ANOTHER ARPT. I HAVE SINCE FOUND OUT THAT ZDC DECLARED AN EMER FOR THE PLT AND IS CITING HIM FOR STARTING THE APCH BELOW MINIMUMS. ZDC SAYS THEY RPTED THE WX AS 200 FT OVCST; 3/8 MI VISIBILITY. THE PLT SAYS THEY TOLD HIM 200 FT AND 5/8; THE SAME WX RWI FSS GAVE TO ME. ON EVERY OCCASION WHEN CTR OR APCH GAVE ME WX THAT WAS BELOW MINIMUMS; THEY WOULD THEN SAY 'SAY YOUR INTENTIONS.' ZDC DIDN'T SAY IT THIS TIME; AND DID NOT GIVE ME ANY OTHER CHALLENGE (I THINK BECAUSE WX WAS ABOVE MINIMUMS). TO CORRECT THIS SIT CTR SHOULD UPDATE ITS WX FROM THE RPTING STATION MORE OFTEN; AND IF THERE'S ANY DOUBT; SHOULD PROMPT THE PLT LIKE THEY USUALLY DO.