As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF UPON GEAR RETRACTION, LANDING GEAR RED INTRANSIT LIGHT REMAINED ILLUMINATED. REMOVED AND REPLACED LT MAIN LANDING GEAR UPLOCK SWITCH P/N: MS24331-1. PERFORMED LANDING GEAR OPERATION CHECK. OP CHECKS GOOD. ALL MAINTENANCE PERFORMED IAW MM 32-10-00, 32-30-00 AND 12-10-00.