As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) ON GROUND, EICAS SHOWED (PROX SYS FAULT 2). MAINTENANCE INSPECTION FOUND PYLON CONNECTOR WITH INTERNAL SHORT, INDICATING FAILURE OF THRUST REV PROX SENSOR. CONNECTOR P/N B0802015-003-98SA (REF: WIRING MANUAL 71-50-01 J508) REPLACED, SYSTEM FUNCTION TEST NORMAL, AIRCRAFT RETURNED TO SERVICE (TC NR 20070427003)