As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
*** WHILE AIRCRAFT WAS IN FOR HEAVY CHECK *** LEVEL TWO CORROSION WAS FOUND ON THE AFT CARGO DOOR HOOK MECHANISM. MAINTENANCE REMOVED AND REPLACED THE AFT CAGO DOOR HOOK MECHANISM IAW EMB 175 AMM 52-32-29. AIRCRAFT STILL OUT OF SERVICE FOR HEAVY CHECK COMPLETION.