What was found
REAR SKIN PANEL OF AFT PRESSURE BULKHEAD IS MISSING ALL REINFORCEMENT ANGLES (7 EA) -59, -61, -62, -65, -66, -69, & -70 REF BOMBARDIER REO 601R-53-61-1240 REV D DTD 2016-10- 13 ***AIRCRAFT REMOVED FROM SERVICE*** GENERAL AND DETAILED INSPECTION C/W, WITH NO DEFECTS NOTED REF CRJ 200 NDTM 51-20-09 (PART 1) REV 43ON 01/11/22 WITH NO ADDITIONAL STRUCTURAL INSPECTION STEPS AND/OR REQUIREMENTS AT THIS TIME REF MHI RJ ENGINEERING MEMO ISE-STR- 001 REV -- DTD 2022-01-06. INSTALLED REINFORCEMENT ANGLES 7EA. P/N 601R-53-61-1240-59; -61; -62; -65; -66; 69; & -70; POCKET SHIMS AT AFT PRESSURE BULKHEAD FS 621.00; COMMON TO BULKHEAD WEB AND 2 STIFFNERS AT BL 0.0; RBL AND LBL 9.5; LBL & RBL 18.0; & LBL & RBL 27.5. REF BOMBARDIER REO 601R-53-61-1240REV D DTD 2016-10-31.