As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DESCENDING THROUGH 1900 GOT LT HYD PRESS LOW MESSAGE ON OAP. PRESS INDICATED ZERO QTY 19. TURNED OFF ENG PUMP. OM GND PRESSURE VARIED BETWEEN ZERO AND 3000 WITH NO PUMPS ON QTY VARIED BETWEEN 11-19. INSPECTED AIRCRAFT NO LEAKS FOUND. FOUND HYD SYSTEM OVERSERVICED BLEED SYSTEM OF AIR AND FLUID TO NORMAL.OPERATED FLIGHT CONTROL WITH HYD ALL CK'S NML. HYD QTY AND PRESSURE CK'D GOOD. NO HISTORY AIRCRAFT OK FOR SERVICE.