As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IN FLIGHT NR 2 HYDRAULIC SYSTEM WENT TO 1 QT AND NR 2 ISO VALVE CAUTION LIGHT ILLUMINATED. NO OTHER CAUTION LIGHTS AND QUANTITY REMAINED ABOVE 1QT. FLIGHT DIVERTED TO MDT WHERE IT WAS FOUND HYDRAULIC FLUID WAS LEAKING FROM BEHIND THE NR 2 NACELLE GRAVEL GUARD. LINES WERE CAPPED OFF AND AIRCRAFT WAS FERRIED TO SBY. INSTALLED HYDRAULIC LINE IN NR 2 NACELLE FOR GEAR DOOR DOWN PRESSURE AND REPLACED HYDRAULIC LINE IN NR 1 NACELLE FOR STAY STRUT ACTUATOR.