FLC MAKES NORMAL LNDG WITH NORMAL BRAKES ON L SIDE INOP.

Narrative

DURING LNDG CHKLIST ON ILS 34 INTO BGM; THE FO AND I DISCOVERED WE HAD NO L BRAKE INDICATION WHEN I PUSHED THE L BRAKE PEDAL. R BRAKE INDICATION WAS NORMAL WHEN R BRAKE PEDAL WAS PUSHED. AFTER A BRIEF DISCUSSION WITH MY FO PLUS CONSULTING THE QUICK REF HANDBOOK. WE DECIDED TO CONTINUE THE APCH AND LNDG. THE QUICK REF HANDBOOK 'SAID' NORMAL LNDG DISTANCE WAS NOT AFFECTED AND TO USE EMER/PARKING BRAKE AS NECESSARY. SINCE I HARDLY EVER USE NORMAL BRAKES ON A LNDG; THEY ARE VERY TOUCHY; AND WE HAD A 10 KT DIRECT HEADWIND; IN OUR OPINION LNDG DISTANCE WOULD NOT BE A PROB AND A NORMAL LNDG COULD BE MADE. WE PLANNED ON NOTIFYING ATC WHEN ON THE GND. THE LNDG WAS NORMAL AND BY USING REVERSE I DID NOT HAVE TO USE BRAKES AT ALL. I DID TRY THE L BRAKE TO VERIFY IT WAS NOT WORKING. AFTER CLRING THE RWY WE PARKED AND SHUT THE AIRPLANE DOWN ON THE TXWY NEXT TO THE RWY AND HAD THE PAX DEPLANE AND BUSSED TO THE TERMINAL. THE PLANE WAS THEN TOWED TO A HANGAR. NO EMER WAS DECLARED. NOW; 2 DAYS LATER AND AFTER THINKING ABOUT IT OVER AND OVER; PROPER PROC WOULD BE TO DISCONTINUE THE APCH AND DECLARE AN EMER; JUST IN CASE. IT HAS BEEN A LEARNING EXPERIENCE.