As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
APPROX 5-10 MINUTES AFTER TAKEOFF, PILOTS NOTED NR 2 HYDRAULIC SYSTEM LOSING FLUID. SYSTEM CONTINUED TO LOSE FLUID SO NR 2 ENGINE WAS SHUT DOWN AND AIRCRAFT LANDED. MAINTENANCE FOUND NR 2 HYDRAULIC SYSTEM PRESSURE SWITCH LEAKING. INSTALLED NEW PRESSURE SWITCH CLEANED AIRCRAFT AFT COMPARTMENT AND TESTED SYSTEM FOR OPERATION AND LEAKS. AIRCRAFT RETURNED TO SERVICE. NEW SWITCH WAS A LATER GENERATION SWITCH (PN 906229).