What was found
FOUND LANDING GEAR UPLATCH RELEASE OR GROUND SHIFT DID NOT WORK AND WOULD NOT RAISE. ON FINAL AT BUF (BUFFALO). GROUND SHIFT OR THE UPLATCH RELEASE WAS HEARD TO HAVE RELEASED. PERFORMED GEAR SWING. NOSE LANDING GEAR FOUND TO BE UNDER SERVICED WITH FLUID AND OVER SERVICED WITH NITROGEN, STRUT CYLINDER CHROME WAS DRY AND DIRTY ALL CONDITIONS CORRECTED IAW DC9 MM 32-30, 32-21-2.