What was found
FLT#503, JFK-SJU. 'PREVIOUS CREW REPORTS R4 DOOR NOT SHOWING ARMED IN FLIGHT( SLIDE INDICATIONS ON ECAM - PAX DOOR NOT ARMED ); FOUND EXCESS DIRT ON PROX DETECTOR 7WN2. CLEARED ANY DIRT FOUND AS WELL AS REPLACED DETECTOR AS PRECAUTIONARY. REF LP 4164806, ITEM 2 (R/R PROX DETECTOR 7WN2 ON R4 DOOR IAW AMM 52-73-11. OPS CHK OK. THE ARM/DISARM FUNDTION WORKS AS PER AMM 52-73-00.) FOR R/R. ALSO PRESSURIZED A/C IAW AMM 05-53-00-780-001-A TO VERIFY NO FURTHER FAULTS. ALL OPS NORMAL. MDDR CLEARED. MX-4 UPDATED. PLACARD REMOVED.'