What was found
FMGC 2 KEEPS FAILING FO MAP LOST LOCKING FOR POSITIVE FIX UNLOCKED PERFORMED AFS TEST IAW AMM 22-96-00. TEST OK NO FAULTS NOTED. LAND CAT 3 TEST WAS PERFORMED, IAW AMM 22-97-00, LAND TEST OK, NO FAULTS FOUND. SUSPECT FMGC 2 INSTALLED BAD FROM STOCK CHKD SCEPTRE SCIRHC HISTORY SHOWED LRU WAS BAD FROM STOCK MULTIPLE TIMES. R & R FMGC 2 IAW AMM 22-83-34. OPS CHECKED GOOD. PERFORMED AFS TEST IAW AMM 22-96-00. TEST OK, NO FAULTS NOTED. LAND CAT 3 TEST WAS PERFORMED AGAIN IAW AMM 22-97-00, LAND TEST OK, NO FAULTS FOUND.