As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ELONGATED HOLE COMMON TO THE PCU ACCESS PANEL, THE LOWER SKIN DOUBLER, AND LOWER STRINGER 3 AS SHOWN IN FIGURE 1. THE HOLE WAS CLEANED UP TO A CLEAN AND ROUND DIAMETER OF 0.281. REPAIRED IAW PINNACLE EA CRJ255-00462 AND ASSOCIATED 8110-3 DATE 3/29/12.