What was found
CORROSION ON HOLE UPPER SURFACE NBR 28 AT RH HORIZONTAL STABILIZER CENTER BOX PLATE. SUMMARY OF NRC 00492: CORROSION LEVEL 2. HOLE UPPER SURFACE NBR 28 AT RH HORIZONTAL STABILIZER CENTER BOX PLATE WAS REPAIRED PER PRI 612928-14 REV 6 AND ER/A 612928-14 REV ORIGINAL SECTION I: PERMANENT REPAIR. TIME CONTROLLED ITEMS: REPAIR APPROVAL IS LIMITED TO 24 MONTHS ONLY, AFTER 06-NOV-2023 ADDITIONAL ENGINEERING AUTHORIZATION (ER/A REVISION) IS REQUIRED FOR CONTINUED SERVICE BEYOND THIS LIMIT. NOTE TO ENGINEER: DAMAGE TOLERANCE ANALYSIS (DTA) IS REQUIRED IN ACCORDANCE WITH PROCEDURES ESTABLISHED IN FACC AC 120-93. LOG PAGE #0053860 ASSOCIATED ER/A 14-612928 ADDED FOR AC 9533. (LP #0083286)