As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT FMC WILL NOT ACCEPT NAV DATA CROSS LOAD. DISCREPANCY VERIFIED LEFT FMC WILL NOT LOAD OR ACCEPT CROSSLOAD OF NAV DATA. OPEN C/B P18 2 C01017 & C01238 REMOVED AND REPLACED LEFT FMC C/B RESET REF MM 34 61 02. PERFORMED OPERATIONAL TEST PER MM 34 61 00, OPS NORMAL.