TKOF ABORTED AFTER AMBER WARNING LIGHT WAS APPARENT TO PIC.

Narrative

IN POS FOR TKOF AND CLRED FOR TKOF. AN ACFT WAS ON A 3 MI FINAL FOR MY RWY (30L). FINISHING THE BEFORE TKOF CHKLIST; I OBSERVED WHAT I THOUGHT WAS AN AMBER CAUTION LIGHT ON THE ANNUNCIATOR PANEL. I ADVISED TWR WE WERE CLRING THE RWY TO INVESTIGATE A CAUTION LIGHT. WHEN I HAD TIME TO ACTUALLY READ THE CAUTION LIGHT; I REALIZED IT WAS A BADLY FADED BLUE ADVISORY LIGHT SAYING 'RUDDER TRAVEL UNRESTR.' IN BRIGHT SUNLIGHT IT HAD APPEARED YELLOWISH WHITE. WE THEN CALLED TWR; WERE RECLRED FOR TKOF AFTER THE LNDG AND DEPARTED NORMALLY WITH NO PROBS. THE 'RUDDER TRAVEL UNRESTR' ANNUNCIATOR LIGHT IS LIT ANYTIME THE AIRPLANE IS LESS THAN 140 KTS WHICH IS MUCH OF THE TIME SINCE IT IS ALSO ON ALWAYS ON THE GND. AS A RESULT; MANY OF THE DC-9-30'S WE HAVE; HAVE BADLY FADED ANNUNCIATOR LIGHTS. MOST TIMES IT IS NO PROB BUT; WITH AN ACFT ON 3 MI FINAL; I FELT I HAD NO TIME TO QUICKLY INVESTIGATE. SINCE WE HAD NO ACTUAL MECHANICAL PROB; I DIDN'T FEEL IT NECESSARY TO ENTER ANYTHING IN THE ACFT MAINT LOGBOOK.