What was found
*ANTENNA DOUBLER CORRODED BETWEEN FS295 AND FS310 AT STGR 27. (C-CHECK RO 6/22/2021) CORROSION ON ANTENNA DOUBLER BETWEEN FS295 AND FS310 AT STGR 27 FOUND TO BE OUT OF LIMITS REF. CRJ-900 SRM, 53-21-01-101-002-A04. REMOVED AND REPLACED TCAS LOWER CHANNEL DOUBLER REF. CRJ-900 SRM, 51-42-06-001-001-A01, CRJ-900 SRM, 51-42-21-001-001-A01 AND DWG SH670-30023 REV G. COMPLIED WITH TASK CARD 51-900-1002-SKY, PRESSURE CHECKS GOOD.