As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
OUTWARD DENT IN SKIN C/T AFT SIDE OF FRAME AT FUSELAGE STATION 589 STRINGER 23L TO STRINGER 34L. ***AIRCRAFT REMOVED FROM SERVICE*** EVALUATED AND HAND DRESSED DENT IN SKIN AT FS 589 STR 23L TO STR 24L. HFCC INSPECTION PERFORMED WITH NO INDICATIONS NOTED, APPLIED YELLOW DOT. REF ASAP EA# AWAC - CRJ253-01569 REV A ISSUE DATE 02/12/21 AND AIR WISCONSIN GMM VOL 1 CHAPT. 18 REV 20-07.