What was found
ON CLIMBOUT FROM BOS RECEIVED ANTI-ICE DUCT WARNING MSG, (LEFT FUSELAGE) WITH ANTI-ICE SYSTEM OFF. EMERGENCY DECLARED, A/C RETURNED TO BOS LANDED SAFELY. REMOVED AND REPLACED LEFT MLG SENSING ELEMENT (A41WK).
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
ON CLIMBOUT FROM BOS RECEIVED ANTI-ICE DUCT WARNING MSG, (LEFT FUSELAGE) WITH ANTI-ICE SYSTEM OFF. EMERGENCY DECLARED, A/C RETURNED TO BOS LANDED SAFELY. REMOVED AND REPLACED LEFT MLG SENSING ELEMENT (A41WK).