As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PILOT REPORTED A "GEAR UNLOCK" ANNUNCIATOR MOMENTARILY ILLUMINATED DURING DESCENT. A HYD PRESSURE ANNUNCIATION ALSO ILLUMINATED AND EXTINGUISHED WHEN THE "GEAR UNLOCK" INDICATOR EXTINGUISHED. THE TECH TROUBLESHOT THE ISSUE TO A LT MLG UPLOCK SWITCH. SWITCH R & R WITH A NEW SWITCH FROM MFG. PERFORMED 30 LANDING GEAR SWINGS WITH NO ABNORMAL INDICATIONS. PERFORMED LANDING GEAR FUNCTIONAL TEST IAW MM REV 15, CHAPTER 32-01-00, FUNCTIONAL TEST WAS SATISFACTORY.