What was found
AIRCRAFT WAS GROUNDED: WITH SINGLE BLEED SOURCE CABIN ALTITUDE CONTINUED TO RISE. STOPPED CLIMB AND DESCENDING O2 MASKS DROPPED DURING DESCENT. FLIGHT DIVERTED TO SJU. **SUPPLEMENTAL REPORT FOR AALA202205262092: REMOVED AND REPLACED AUXILIARY POWER UNIT BLEED VALVE (AALA202205262092) PER AMM 49-52-11. REMOVED AND REPLACED DISCHARGED O2 CANISTERS AT ALL PASSENGER SEATS AND 3 FLIGHT ATTENDANT STATIONS.** (CLOSED)