What was found
CORROSION WAS FOUND ON HSTB HOLE #27 RH. SUMMARY OF NRC 00650: RH HORIZONTAL STABILIZER BARREL NUT HOLE #27 WAS REPAIRED IN ACCORDANCE WITH ER/A 617762-14 REV ORIGINAL SECTION I: PERMANENT REPAIR. TIME CONTROLLED ITEMS: REPAIR APPROVAL IS LIMITED TO 24 MONTHS FROM 12MAY24. 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. UNDER LOG PAGE #0342523. ASSOCIATED ER/A 14-617762 ADDED FOR AC 9538. (LP #0344903)