What was found
FLT 759, BOS-SJU, AT CRUISE GOT ECAM ENG NR 2 OIL LOW PRESSURE. ENG PAGE PSI SHOWED XX, THEN FLASHED NORMAL THEN FLASHED "0" PSI. PERFORMED QRH PROCEDURE SHUT NR 2 ENG DOWN AND DIVERTED TO CLOSEST SUITABLE AIRPORT. ENG RUN CARRIED OUT OIL PX CHECKS NORMAL, DUE TO PREVIOUS HISTORY R & R NR 1 & NR 2 SDAC PER MM 31-55-34-04. R & R NR 2 EIU PRECAUTIONARY. FOUND NR 2 ENG OIL PRESS WIRE CHAFED AT TM824 (WIRE 8P082W20) PIN A. REPAIRED WIRE 8P082W20 PER ESPM 20-53-21. A/C OK FOR SERVICE. PROVIDED SECONDARY INSULATION AS REQUIRED, OIL PRESS SYS OPS CHECK GOOD. CONFIDENCE/ASSURANCE FLT ACCOMPLISHED BY FLIGHT CREW, NO FAULTS NOTED WITH NR 2 ENGINE OIL PRESSURE INDICATION.