As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AWR HIDDEN DISCREPANCY: DURING BUSHING REMOVAL, CORROSION WAS FOUND ON INB/OUTB PCU´S BUSHINGS HOUSING FITTINGS 4EA AT LEFT AILERON [IN REF NRC 00384]. (AI) SUMMARY BUSHINGS WERE FABRICATED AND HOUSING FITTINGS 4EA AT LEFT AILERON ON INB/OUTB PCU´S WERE REWORKED PER BOMBARDIER REO 670-57-61-237 REV -