As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
GEAR "UNLOCK" LIGHT, "HYD PRES" LIGHT, AND "STAB MISCOMPARE" LIGHT ALL ILLUMINATED AFTER TAKEOFF. THEY REMAINED ILLUMINATED WHILE RUNNING THE CHECKLIST AND DID NOT EXTINGUISH UNTIL THE GEAR WAS EXTENDED. REPEAT WRITEUP. REMOVED FAULTY HYD RELIEF VALVE. INSTALLED OVERHAULED UNIT BY PNEUDRAULICS. LEAK AND OPS CHECK GOOD IAW MM 29-11-06.