As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT IN BASE MAINTENANCE: FOUND R4 PAX DOOR ASSIST BOTTLE LOW PRESSURE. MAINTENANCE REMOVED R4 DOOR DIAPHRAGM PER A321 AMM 52-10-00-610-001-A LATE ENTRY: INSTALLED R4 DOOR DIAPHRAGM PER A321 AMM 52-10-00-610-001-A. CHARGED R4 PAX DOOR ASSIST BOTTLE IAW A31/321 AMM 52-10-00.