What was found
ON FLIGHT 2328 NR 1 RUDDER HYDRAULIC CAUTION LIGHT ILLUMINATED AFTER CHECKLIST. COMPLIED WITH Q400 SERVICE LETTER 31-001R12. NO PARTS REPLACED. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
ON FLIGHT 2328 NR 1 RUDDER HYDRAULIC CAUTION LIGHT ILLUMINATED AFTER CHECKLIST. COMPLIED WITH Q400 SERVICE LETTER 31-001R12. NO PARTS REPLACED. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.