What was found
DURING ANNUAL INSPECTION, FOUND TRIM TAB CRACKED APPROXIMATELY 60 PERCENT AROUND BASE OF ATTACH ARM, P/N 65248-000. DAMAGE EXTENDED THROUGH INBOARD RIB, P/N 63887-01. SUBMITTER RECOMMENDED CLOSER PRE-FLIGHT AND MAINTENANCE INSPECTION OF THIS AREA AS IT CAN ONLY BE SEEN BY LOOKING UNDER STABILATOR.