As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UNWANTED FUEL USE FROM RT WING. *SUPPLEMENTAL DATA UPDATE* OPBLM PROG TEXT: - ITEM ROLLED FORWARD. SAMC TEXT: APPROX 900 LBS IMBALANCE DURING A 3 HOUR FLT IAD- SJU. WORK WITH LM2750. OPBLM. REPLACED LEFT WING REFUEL VALVE SEE SEQ 9582001.