What was found
CORROSION ON HORIZONTAL STAB BARREL NUTS RH SIDE #13 AND #27. SUMMARY OF NRC 00800: LEVEL CORROSION 2. BARREL NUTS HORIZONTAL STAB RH SIDE #13 AND 27 WERE REPAIRED PER PRI 624606-14 REV 1 & ER/A 624606-14 REV ORIG. SECTION I: PERMANENT REPAIR APPROVAL IS LIMITED TO 24 MONTHS SERVICE FROM DATE OF APPROVAL ONLY (12MAR25). ADDITIONAL ENGINEERING AUTHORIZATION (ER/A REVISION) IS REQUIRED FOR CONTINUED SERVICE BEYOND THIS LIMIT. NOTE TO ENGINEER: DAMAGE TOLERANCE EVALUATION IS REQUIRED IN ACCORDANCE WITH PROCEDURES ESTABLISHED IN FAA AC 120-93. PER ERA 624606-14 REV ORIGINAL, UNDER LOG PAGE #0863250. ASSOCIATED ER/A 14-624606 ADDED FOR AC 9547. (LP #0868438)