As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT#751, JFK-CUN. (AIRCRAFT PERFORMED AN AIR TURNBACK TO JFK) ' FOB INOP WITH XX AND NO FUEL IND ON BOH LEFT WING TANKS; SUMPED FUEL AS PRECAUTIONARY REF AMM 12-32-28 AND REMOVED AND REPLACED FQIC IAW AMM 28-42-34. OPS CHECK NORMA.L A/C OK FOR SERVICE.'