As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SERVICE BULLETIN 670-BA-53-057 WAS BEING CARRIED OUT WHEN DRAIN HOLES WERE INCORRECTLY DRILLED AFT OF THE CORRECT LOCATION PER THE SERVICE BULLETIN (SEE FIGURE 1 SHEET). PERFORM PERMANENT REPAIR IAW CRJ7/9 STRUCTURAL REPAIR MANUAL (SRM) . 53-21-01-001-002-A01, FIGURE 53-21-01-991-802 ITEM 1. B) 53-11-01-001-008-A01, FIGURE 53-11-01-991-808 ITEM 1.