What was found
A.D. RUST IN BARREL NUT AND CORROSION IN BARREL NUT HOLE (HSTAB SKIN) WAS FOUND IN NUT #11 AT RH HSTAB UPPER SIDE, IN REFERENCE NRC 438. SUMMARY OF NRC 00727: HORIZONTAL STABILIZER RH UPPER BARREL NUT HOLE #11 AND LOWER BARREL NUT HOLE #29 WERE REPAIRED PER PRI 615196-14 REV 2 AND ERA 615196-14AD REV ORIGINAL SECTION I: PERMANENT REPAIR. MAINTENANCE REQUIREMENTS WERE VERIFIED ON FOLLOWING ACTIONS AS NEEDED: REPAIR APPROVAL IS LIMITED TO 24 MONTHS ONLY AFTER 07-FEB-2024. ADDITIONAL ENGINEERING AUTHORIZATION (ERA REVISION) IS REQUIRED FOR CONTINUED SERVICE BEYOND THIS LIMIT. NOTE TO ENGINEER: DAMAGE TOLERANCE ANALYSIS (DTA) STAGE II/III IS REQUIRED IN ACCORDANCE WITH PROCEDURES ESTABLISHED IN FACC AC 120-93. UNDER LOG PAGE #0202232. ASSOCIATED ERA 14-615196 ADDED FOR AC 9566. (LP #0209462)