What was found
* R/H INBOARD FLAP HAS MULTIPLE AREAS OF INTERNAL CORROSION AND DETERIORATED COATINGS, IN THE 4 BAYS OUT FROM THE INBOARD EDGE, FROM APPROX. MID CHORD TO THE TRAILING EDGE. (C-CHECK RO 10/29/2022) REMOVED AND INSTALLED R/H INBD FLAP REF CRJ-900 AMM 27-52-21-400-801-A01. DE-RIVETED AND RE-RIVETED SKIN ON R/H INBOARD FLAP ON THE 4 BAYS OUT FROM THE INBOARD EDGE, FROM MID CHORD TO THE TRAILING EDGE, REF. CRJ 900 SRM 51-42-10-001-001-A01. CLEANED INSIDE THE 4 BAYS, OUT FROM THE INBOARD EDGE, FROM MID CHORD TO TRAILING EDGE. DETERIORATED COATINGS AND FLAKING PRIMER WERE REMOVED . NO CORROSION FOUND. REF. CRJ700/900 SRM 51-26-00-001-001-A01. OPS CHECK AND RIGGING ARE GOOD.