What was found
DURING ROUTINE OPERATIONS AT DAYTON INTERNATIONAL AIRPORT (DAY) FACILITIES IN DAYTON, OH, MAINTENANCE DISCOVERED GOUGE DAMAGE TO THE LH AILERON HINGE FITTING (P/N CC670-18054-3). THE DAMAGE MEASURES 0.302Ï¿½L X 0.232Ï¿½W X 0.0245Ï¿½D. THE LH AILERON HINGE FITTING IS FABRICATED FROM 7475-T7351 CMS 516-02 ALUMINUM. / REMOVED LH AILERON #3 HINGE BOLT, ANTI ROTATION PLATE, SPACER, RETAINING PLATE, FLUTTER DAMPER TO AILERON BOLT, AND BOTH LH PCU OUTPUT LINK TO AILERON BOLTS IAW CRJ700 AMM 27-15-01-000-801 STEPS 1 THROUGH 3, AND STEPS 4.A1, 4.A3, 4.A7, 4.A8, 4.A9, 4A.13. STRIPPED PAINT FROM TEMP REPAIR LOCATIONS ON AIRFRAME SIDE OF #2 AND #3 LH AILERON HINGE FITTINGS IAW CRJ700 SRM 51-26-01-001-001. PERM REPAIR NEEDS C/W. REINSTALL OF PARTS NEEDS C/W. OPERATIONAL TEST OF AILERON CONTROL SYSTEM NEEDS C/W. C/W SECTION 3.1.A OF EA 21-C7-57-758 REV A IAW EA INSTRUCTIONS. REINSTALLED L/H AILERON #3 HINGE BOLT, ANTI-ROTATION PLATE, SPACER, RETAINING PLATE, FLUTTER DAMPER TO AILERON BOLT, AND BOTH L/H PCU OUTPUT LINK TO AILERON BOLTS IAW CRJ700 AMM 27-15-01-400-801. OPS CHECK GOOD AT THIS TIME, NO DEFECTS NOTED. ROTO PEEN WAS PERFORMED BY CONSTANT AVIATION UNDER WORK ORDER CAS-17005 ON LH AILERON HINGE FITTING #3 IAW EA 21-C7-57-758 REV A AND CRJ 700 SRM 51-24-11-001-001-A01. [THIS TERMINATES EA21-C7-57-758-A].