As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
GUM - FLT 992 - DURING APPROACH TO GUM, LEFT MLG WOULD NOT EXTEND. MANUALLY HAD TO EXTEND GEAR. GEAR DOWN AND LOCKED NORMALLY. MAINTENANCE FOUND THE UPLOCK SHAFT ASSY BROKEN. THE GEAR UPLOCK SHAFT ASSY WAS REMOVED AND REPLACED PER MM 32-30-51 AND GEAR SWING CHECK NORMAL PER MM 32-32-0, PAGE 501. (X)