As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PDIS 937 29-30 1780 24FEB23 ONT FACT U R HYD SYS PRESS EICAS AND DISCRETE LIGHT ALONG WITH BRAKE SOURCE IN FLIGHT. RAN THE QRH CHECKLIST, DECLARED AN EMERGENCY AND PREFORMED FLAPS 20 LANDING IN ONT. AMM: 29-11-17-4 REMOVED AND REPLACED R/H PRESSURE SWITCH S32 EATON P/N 211C223-528 S/N M0225229C REF AMM 29-11-17-4 OPS AND LEAK GOOD A/C OK FOR SERVICE