As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING HEAVY MAINTENANCE: FWD CARGO DOOR SILL AT FR24 TO FR 29 AT ENTERANCE 3EA SCREW HOLES FOUND WITH SURFACE CORROSION ON FWD FACE OF SILL (REF AVIANOR MX NR# 1037); FOUND TO BE OUT OF LIMITS REMOVED AND REPLACED FWD CARGO DOOR SILL PER SRMB0500-A-J51-42-21-00AAA-78A-A AND JETBLUE EC# AC24-126-01