What was found
AFTER APPROXIMATELY 4 HRS OF FLIGHT, WITH ACFT LEVEL AT 370, SMELLED ELECTRICAL ODOR. SHORTLY AFTER, NOTED NO LAND 3 ON AUTO LAND STATUS, ODOR DECREASED CONTINUOSLY TO ZERO BY END OF FLIGHT. PERFORMED TROUBLESHOOTING IAW FIM 22-02, FAULT TREE 808 , PERFORMED TEST OF FCC L-C-R CENTER FCC FAILED, UPON REMOVAL OF FCC. CENTER FOUND, ELECTRICAL ODOR DETECTED, ALL PINS CHECK OK, NO DAMAGE REPLACED CENTER FCC IAW AMM. PERFORMED FCC TEST 1 AND A/C LAND TEST 40 , ALL TEST COMPLETE AND OK . SYSTEM CHECKS NORMAL.