As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PILOT REPORTED THAT ON FINAL, LANDING GEAR WOULD NOT EXTEND NORMALLY. MX INVESTIGATED PROBLEM AND FOUND THAT THE HYD POWER PACK WOULD TURN ON BUT NO FLUID WAS BEING PUMPED THROUGH THE SYS. REPLACED POWER PACK, NO FURTHER ACTION NEEDED.