As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
HYD QTY GAUGE F/O INST PANEL A-SYS QTY GAUGE INDICATES DECREASING FLUID LEVEL BEGAN AT 3.5 NOW AT 1.75. PERFORMED WALKAROUND OF A/C CKED ALL FLT. CONTROLS AND LANDING GEAR NO LEAKS NOTED. FOUND COCKPIT QUTY IND STICKING, REPLACED TRANSMITTER, OPS CK GOOD, LKS CK GOOD. USAIR LOANER PART INSTALLED.