As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) ON TAXI OFF THE RUNWAY HYD 2 LOW PRESSURE CAUTION POSTED ON EICAS. PRESSURE SHOWED BETWEEN 100-300 PSI. MAINTENANCE FOUND THE RT IB GROUND SPOILER EXTENSION FLEX LINE P/N AE2464218E0164 IN THE GEAR WELL RUPTURED. THE LINE WAS FOUND TO BE CHAFFING ON THE WING BOX STRUCTURE UNDER THE COVER ASSEMBLY P/N 600-31594-15.