As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CRUISE WITH ANTI-ICE ON, CREW ENCOUNTERED MULTIPLE COMPRESSOR STALLS ON NR 2 ENGINE ACCOMPANIED BY SLIGHT CHANGES IN TORQUE AND ITT. ALSO, RECEIVED NR 2 IGNITION LIGHT. REPLACED ANTI-ICE VALVE ON NR 2 ENGINE. PERFORMED BOROSCOPE OF HOT AND COLD SECTIONS WITH NO DISCREPANCIES NOTED. OPERATIONAL CHECKS FOUND SATISFACTORY. AIRCRAFT RETURNED TO SERVICE. (M)