As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: HYD Y RSVR LO LEVEL. THE RESERVOIR IS INDICATING EMPTY. EMERGENCY DECLARED AND AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE FOUND PRESSURE SUPPLY LINE LEAKING FOR THE T/R ISOLATION VALVE ON RT ENG. R/R PRESSURE SUPPLY LINE IAW AMM 29-13-49.