As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NOSE GEAR WOULDN'T RETRACT AFTER TAKEOFF AND RETURNED TO DEPARTURE. FOUND THE NLG UPLOCK BOX AND NLG PROXIMITY SWITCHED BAD. MAINTENANCE REMOVED AND REPLACED THE NLG UPLOCK BOX AND PROXIMITY SWITCHES IAW AMM 32-33-07; 32-61-01; IPC32-33-07 PAGE 1, ITEM 30A, FIGURE 1. OPS AND LEAK CHECKED GOOD AND THE LDG EXTENSIONS AND RETRACTION WERE DONE IAW 32-30-00;OPS CHECKED GOOD AND RELEASED TO SERVICE.