What was found
DURING A 1200 HOUR, SPECIAL DETAILED INSPECTION OF LT FLIGHT SPOILER, ENCOUNTERED DIFFICULTY REMOVING INBD MOUNTING BOLT AND ATTACHED HARDWARE. DURING INSPECTION OF HARDWARE FOLLOWING REMOVAL FROM ACFT, NOTED BOLT LENGTH WAS SHORTER THAN LENGTH OF OTHER MOUNTING BOLTS. IDENTIFIED THAT THE SUSPECT BOLT WAS A NAS6705DU22 BOLT AND WAS INCORRECTLY INSTALLED AT INBD POSITION. CORRECT BOLT SHOULD HAVE BEEN A NAS6705DU23. REPLACED HARDWARE WITH CORRECT PART NUMBER IAW CHAPTER 27-64-01 AND REASSEMBLY WAS NORMAL WITH NO FURTHER DEFECTS NOTED.