What was found
RH FLAP STUB FAIRING (172DR) HAS A FLAP FITTING (PN 601R10371-2) CHAFFED THRU. REQUIRES REPLACEMENT. UPON FURTHER INVESTIGATION, FOUND BOTH R/H FLAP STUB FAIRING FLAP FITTING AND ATTACHING PLATE TO BE EXCESSIVELY CHAFED. REMOVED R/H FLAP STUB FAIRING FLAP FITTING AND ATTACHING PLATE AND INSTALLED NEW SERVICEABLE P/N'S 601R10371-2 (FITTING) AND CC670-39233-8 (PLATE) IAW CRJ-900 SRM 51-42-21-001-001-A01 AND 51-41-02-001-001-A01.