As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
HYDRAULIC SYS 3 LOW PRESSURE ILLUMINATED DURING GEAR EXTENSION. EMERGENCY NON-NORMAL CHECK LIST PERFORMED. SYS 3 FLUID LEVEL AT 0, UNEVENTFUL LANDING. MANUAL LANDING GEAR EXTENSION PERFORMED, EMERGENCY DECLARED. COMPLIED WITH TECHNICAL SUPPLEMENT OEM-000121-2012. R & R HYD PUMP 3A & 3B IAW AMM 29-12-03, NO LEAKS FOUND AT THIS TIME.