What was found
FLARE ARMED DID NOT ILLUMINATE AT 500 RA. SUBSEQUENTLY DISCONTINUED PRACTICE CATIII AUTOLAND HYBRID APPROACH AND THEN FLARE ARMED ILLUMINATED AT 150 FT AGL. ACFT GROUNDED. ACCOMPLISHED DFCS FAULT REVIEW IAW LLM CHECKLIST AMM 22-00-01, DFCS CHANNEL A LOGGED MSG 22-11303 INTERNAL FCC FAULT (3 TIMES) LAST LEG. NO FAULTS LOGGED IN CHANNEL B. REMOVED AND REPLACED FCC A COMPUTER REF B737-800 AMM 22-11-33, OPS CHECK NORMAL. THIS CLEARS MEL'S 22-1F & 22-99B, A/T TEST PASSED OPS TEST PASSED REF AMM 22-31-00, THIS CLEARS MEL 22-4B. LAND VERIFY TEST PASSED REF LLM CHECKLIST 22-00-01 THIS CLEARS MEL 22-99C.