What was found
YIP - DURING A ROUTINE MAINTENANCE INSPECTION, IT WAS NOTED THAT THE LEFT WING OUTBOARD SPOILER SUPPORT UPPER RIB ASSEMBLY WAS BROKEN, AND A SECTION OF THE RIB WAS MISSING. REMOVED AND REPLACED RIB ASSEMBLY. NEW RIB WAS PROCURED PRE-DRILLED AND THE HOLES DID NOT ALIGN WITH EXISTING STRUCTURE. REPAIR DOUBLERS WERE FABRICATED AND INSTALLED PER USA JET AIRLINES, INC ENGINEERING AUTHORIZATION NR 95-57-01. THIS DATA WAS DESIGNED AND DER APPROVED BY FLIGHT VEHICLES INC ENGINEERING AUTHORIZATION NR 95-53-9549, AND ASSOCIATED FAA FORM 8110-3. (M)