As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LOST LT HYDRAULIC SYSTEM, DECLARED EMERGENCYP AND PERFORMED AN ALTERNATE GEAR EXTENSION IAW QRH. FOUND AND REPLACED LEAKING FLAP/SLAT DEPRESSURIZATION MODULE. ALSO, REPLACED LT ENGINE DRIVEN HYD PUMP DUE TO NO PRESSURE OUTPUT. LEAK AND OPS CK'S OK.