As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LAS - EES - DURING OVERNIGHT INSPECTION DISCOVERED THE L1 DOOR ASSIST BOTTLE LOW, AT ZERO PSI. MAINTENANCE FOUND LEAK AT DIAPHRAGM. REMOVED AND REPLACED DIAPHRAGM AND SEALS ON THE L1 DOOR ASSIST BOTTLE IAW AIRBUS 320 AMM 52-10-00-03. LEAK CHECK WAS GOOD.