As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHEN LOWERING THE LANDING GEAR THE NOSE WHEEL WOULD NOT SHOW A DOWN INDICATION. CYCLED THE GEAR AND TRIED AGAIN AND THE NOSE GEAR CAME DOWN. (FLT 5539) REPLACED THE NLG SELECTOR VALVE IN REFERENCE TO CRJ200 AMM. P/N: 750006000 S/N OFF: 1481T.