As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 1 ENG STRUT OVERHEAT LIGHT CAME ON SHORTLY AFT ENG ANTI-ICE OPEN. COMPLIED WITH TROUBLESHOOTING PROC ON PAGE 2-7-10 OF CFM. LIGHT WENT OUT. FOUND HEAT EXCHANGER CRACKED. *S/D* REMOVED AND REPLACED NR 1 BLEED AIR HEAT EXCHANGER PER MM 36-11-051-4 FROM STEP 2A - 2C. NO FAULTS NOTED.