As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ENROUTE, BOTH FMGEC -EFOB ON F-PLN PAGE BEGAN TO FLUCTUATES REGULARLY BY AS MUCH AS 2000 LBS. FUEL BURN NORMAL. INDICATIONS CAUSED REFILE OF ALTERNATE AIRPORT FOR EFOB CALCULATIONS. PFMD VIS FUEL LEAK FROM TKS AND ENGS -NO FUEL LEAK FOUND. PFMD AFS TEST SHOWS FAULT "FMGEC1" CLASS 1 MSG. SWAPPED FMGEC1 AND 2 AND PFMD AFS TEST AND SHOWS FMGEC1 CLASS 3 MSG. IAW AMM 22-96-00. NOTIFIED MC AND OBSERV FURTHER. A/C STILL OK TO CONT IN SVC. ALSO A/C OK TO LLM OPS.