What was found
R/H INTERCOSTAL FROM FS 559 TO FS 559+16 IS CORRODED BEYOND LIMITS AND REQUIRES REPLACEMENT (C-CHECK RO 6/11/2021) REMOVED R/H INTERCOSTAL FROM FS 559 TO FS 559+16 IAW: CRJ200-SRM-51-42-06 AND 51-41-02. LOCATED AND DRILLED NEW SERVICABLE INTERCOSTAL PN:601R38842-3 FROM FS559.00 TO FS559.16 IAW CRJ-200 SRM 51-40-11. INSTALLED NEW SERVICABLE INTERCOSTAL FROM FS559.00 TO FS559+16 IAW CRJ-200 SRM 51-41-02, 51-42-06 AND 51 -42-21. COMPLETED SKYWEST TASK CARD 51-900-1003-SKY AND ATTACHED FORM 337. NO WEIGHT CHANGE NOTED