As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 1 ENGINE, EDP (A HYD SYS) WILL NOT DEPRESSURIZE. ACFT GROUNDED. FOUND CONNECTOR TO NR 1 ENG EDP DAMAGED. R & R NACELLE WIRING HARNESS, REF MM 71-51-03-400-801-F00. PERFORMED EEC TEST REF MM 73-21-00-700-804-F00 & ACTUATORS TEST REF MM 71-00-00-700-807-F00. ALL TESTS PASSED & OPS CKS GOOD. R & R NR 1 ENGINE HYD PUMP, NO LEAKS NOTED AND OPS CHECKED GOOD REF MM 29-11-11.