As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT 498 EN-ROUTE, LOSS OF FLUID ON Y HYD SYS. THE FLIGHT DECLARED AN EMER & DIVERTED. THE FLIGHT LANDED WITHOUT FURTHER INCIDENT. FOUND NR 2 ENG HYD PRESS SWITCH CRACKED. R & R NR 2 ENG HYD PRESS SWITCH IAW AMM 29-13-17. SERVICED Y HYD SYS IAW AMM 12-12-29. OPERATIONS & LEAK CHECKED GOOD.