What was found
DURING ROUTINE LINE OPERATIONS IN RFD (GREATER ROCKFORD, IL), ATI MAINTENANCE REPORTED THE #1/LEFT ENGINE STRUT PANEL (431AT) DEPARTED THE AIRPLANE AND DAMAGED THE LEFT WING INBOARD #5 SPOILER. THE REPORTED DAMAGE MEASURED APPROXIMATELY 1.0" IN HEIGHT X 4.25 IN WIDTH. THE REPORTED DAMAGE WAS OUTSIDE THE ALLOWABLE LIMITS DESCRIBED IN BOEING 767-300 STRUCTURAL REPAIR MAINTENANCE MANUAL 57-70-01. IAW FAR 43 APP A. (B) THE INTERIM REPAIR IS CLASSIFIED AS A MAJOR REPAIR AND REQUIRES A GENERAL VISUAL INSPECTION AND TAP TEST EVERY (50) CYCLES IN ADDITION TO A GENERAL VISUAL INSPECTION FOR STRUCTURAL INTEGRITY EVERY (3) DAYS AT SCHEDULED SERVICE CHECK. THE #5 SPOILER IS SCHEDULED TO BE REPAIRED AT THE NEXT C CHECK CURRENTLY SCHEDULED FOR 5 APRIL 2022, ALTERNATIVELY, NO LATER THAN 7 JUNE 2022.