As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING INCORPORATION OF EO# P53025-559 BULKHEAD REPAIR, WHILE REMOVING/CUTTING EXISTING LOWER CAP ANGLE TECH DRILLED THROUGH SACRIFICIAL PLATE INTO 559.00 BULKHEAD (3 EA. LOCATIONS). "REPAIRED DRILL STRUTS AND MISDRILLED HOLE IN 559 BULKHEAD IAW CRJ 200 REO 601R-53-41-2875 REV A. "