What was found
RECEIVED NOSE GEAR DISAGREE WARNING MSG ON APPROACH INTO BOS. EMERGENCY DECLARED, PERFORMED QRH A/C LANDED SAFELY. REMOVED AND REPLACED NLG SELECTOR VALVE.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
RECEIVED NOSE GEAR DISAGREE WARNING MSG ON APPROACH INTO BOS. EMERGENCY DECLARED, PERFORMED QRH A/C LANDED SAFELY. REMOVED AND REPLACED NLG SELECTOR VALVE.