What was found
29ABC OXYGEN PANEL MASKS DEPLOYED, DROPPED ON THEIR OWN DURING SERVICE. MOVED TO MEL 35-21-01A, PLAC & MEL INSTALLED, M PROC C/W. SECURED PSU PANEL AND O2 MASKS REF A319 AMM 35-20. OPS CHK NML. PLACARD REMOVED. "M" PROC REV. (LP: 1642084, AIRCRAFT WAS GROUNDED)