As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAH - CREW REPORTED LEFT ENGINE COMPRESSOR STALL ON CLIMBOUT. AUTOPILOT KICKED OFF AND AIRCRAFT YAWED SLIGHTLY. EMERGENCY DECLARED FLIGHT RETURNED IAH LANDED WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. ACCOMPLISHED BOROSCOPE AND FOUND LEFT ENGINE HAD ICE INGESTION CAUSING FAN FOD TO 8 FAN BLADES. REPLACED BLADES. SYSTEM GROUND CHECK NORMAL OPERATION.