As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
A 'THUD' NOISE NOTED ON TAKEOFF, DEADHEADING CAPT ON 23A NOTICED WHAT APPEARED TO BE A FIREBALL FROM ENG 1 EXHAUST. CREW REPORTED NO ABNORMAL PARAMETERS. NO DEBRIS FOUND ON RUNWAY. SUPPLEMENTAL DATA UPDATE CHECKED FOR EVIDENCE OF COMPRESSOR FAILURE WITH NO FINDINGS FOUND. FURTHER TROUBLESHOOTING FOUND THE 7TH AND 10TH STAGE BLEED VALVES SOLENOIDS TO BE FAULTY AND WERE REPLACED. ALSO PERFORMED A VARIABLE STATOR VANE SYSTEM LUBE AS A PRECAUTIONARY MEASURE. REPLACED ENGINE.