As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 4014 - AIRCRAFT RETURNED TO FIELD, NLG INTRANSIT LIGHT WOULD NOT EXTINGUISH. AIRCRAFT LANDED WITHOUT FURTHER INCIDENT. PIT/MX REMOVED AND REPLACED NLG UPLOCK MICROSWITCH IAW MM 32-60-05. OPS CHECKED GOOD. AIRCRAFT RETURNED TO SERVICE.