As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
HYDRAULIC SYS NR 4 INTERMITTENT FLICKER OF PUMP PRESS AND BRAKE LOW PRESS AT FE PANEL AND FWD ANNUNCIATOR. HYD QTY AND PRESS INDICATION NORMAL. WIRING CHECK IAW 29-34-12 FOUND WIRES SHORTED TO GROUND AND BOTH EDP/ADP PRESS SW AND CONNECTORS CONTAMINATED. CONNECTORS REPLACED AND WIRING REPAIRED IAW SWPM 20-10-13.