As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DIVERSION, A SYS HYD QTY DECREASED FROM 7/8 TO 3/8 IN 1ST HOUR OF FLIGHT. LOW PRESS LIGHTS DID NOT ILLUMINATE. PRESS REMAINED GOOD AT 3000 PSI AT ALL TIMES. FOUND LEAK IN TAIL SECTION. R & R NR 1 FUEL ACTUATOR MANUAL ISOLATION VLV IAW AMM.