What was found
(CAN)IN CRUISE CREW OBSERVED #1 ENGINE INTAKE LIP TO BE GLOWING AND SPARKING. DE-ICE TURNED OFF. AIRCRAFT RETURNED. LIP ASSEMBLY REPLACED.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
(CAN)IN CRUISE CREW OBSERVED #1 ENGINE INTAKE LIP TO BE GLOWING AND SPARKING. DE-ICE TURNED OFF. AIRCRAFT RETURNED. LIP ASSEMBLY REPLACED.