What was found
MAIN AVIONICS BAY FS319 FRAME FROM STR 18L TO STR 21L CORRODED ON UPPER FREE FLANGE (C-CHECK RO 4/1/2021) REPLACED FS319 FRAME FROM STR 18L TO STR 21L WITH NEW FRAME SECTION, REFERENCE CRJ700 SRM 51-42-06-001-001-A01, CRJ700 SRM 51-42-21-001-001-A01 AND BOMBARDIER DWG SH670-31810 REV AE. SEE ATTACHED CONTINUATION CARD FOR DETAILS OF WORK PERFORMED. CHECKS GOOD AT THIS TIME. COMPLIED WITH TASK CARD 51-900-1002-SKY.