What was found
FASTENER DISCREPANT INSTALLATION ON PREVIOUS FUSELAGE SKIN REPAIR, ALSO THERE ARE LIGHTNING STRIKES AT TWO LOCATIONS ADJACENT TO REPAIR FASTENERS AT AFT LH ALTERNATE STATIC PORT AREA BTW STA Y=256-362 AND BTW LONG 26LH-27RH. SUMMARY OF NRC 00664: FASTENER DISCREPANT INSTALLATION ON PREVIOUS FUSELAGE SKIN REPAIR AND LIGHTNING STRIKES AT TWO LOCATIONS ADJACENT TO REPAIR FASTENERS AT AFT LH ALTERNATE STATIC PORT AREA BTW STA Y=256-362 AND BTW LONG 26LH-27RH WERE REPAIRED PER ER/A 590835-14 REV A, SECTION I PERMANENT REPAIR. TIME CONTROLLED ITEMS: SECTION DTE: REPAIR APPROVAL IS LIMITED TO 24 MONTHS FROM 03-APR-2025. 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. MONITORING LOG PAGE #0902212. ASSOCIATED ER/A 14-590835 ADDED FOR AC 9547. (LP #0903399)