What was found
ON APPROACH IN TO KGKY ROUGHLY 8000 FT UNDER 248 KNOT PILOTS REPORTED WHILE ATTEMPTING TO START THE APU THEY RECEIVED AN APU FIRE WARNING. THEY PLACED THE APU START SWITCH BACK TO OFF AND NOTICED THE RPMS AT 20 PERCENT AND WARNING EXTINGUISHED. VERIFIED NO BOTTLE WAS BLOWN AND ON LANDING STARTED THE APU WITH NO ISSUES TWICE ALONGSIDE MX CONTROL. MX C/A: PERFORMED MDC DOWNLOADS AND PROVIDED TO BOMBARDIER CRC. C/W FIRE EXT SYS F/T WITH SATISFACTORY RESULTS, NO DEFECTS NOTED. C/W APU ENCLOSURE AND TAIL PIPE GVI, NO DEFECTS NOTED.