As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON TAKEOFF TOWER REPORTED SPARKS FROM NR 1 ENGINE DURING CLIMB.EGT HIGH (600 DEGREE) AS COMPARED TO OTHER ENGINES.N1 90% N2 94%, EXPERIENCED COMPRESSOR STALL AT FL 250 WHILE CDLIMBING TO FL 350. ENGINE REPLACED PER POLAR WORK CARD M71-00-02.