As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INSPECTION TYPE:N/A AT FL 330 ECAM ADVISORY-LOW OIL QTY NR 1 ENGINE. ECAM AND OIL QTY GAUGE BOTH INDICATED OIL QUANTITY 0 ON NR 1 ENGINE. NR 1 ENGINE PRES AND TEMP NORMAL THROUGHOUT FLIGHT. CONTINUED TO RUN ENGINE AND IT PERFORMED WITHIN LIMITS IN ALL PWR RANGES. T/S PER TSM. REMOVED AND REPLACED NR 1 ENGINE PER TC.