What was found
GOUGING MARKS ON EXTERNAL SKIN OF DOUBLER, FWD ATG ANTENNA MATING SURFACE BETWEEN FS 501.00 - 517.00, STGR 25R - 26R. MARKED. (C-CHECK RO 5/28/2024) REMOVED AND INSTALLED NEW FWD ATG ANTENNA DOUBLER BETWEEN FS501.00 - FS517.00 REF CRJ900 SRM 51-42-20-001-001-A01 AND GOGO DOC# D12938-20210, REV: -D. PRESSURE LEAK CHECK GOOD. COMPLIED WITH SKYWEST TASK CARD: 51-900-1002-SKY. SEE CONTINUE CARD FOR DETAILS.