What was found
REMOVED LEFT WING WINGLET ATTACHMENT BOLTS AND SLEEVES TO REMOVE WINGLET FOR ACCESS. FOUND ALL SIX BOLTS EXCESSIVELY CORRODED. THERE IS NO REQUIRED INSPECTION IN CHAPTER 5 FOR THESE BOLTS. THERE IS ALSO NO REMOVAL OR INSTALLATION INSTRUCTIONS FOR WINGLET IN MM. SUBMITTER RECEIVED SPECIAL INSTRUCTIONS FROM ENGINEERING FOR SEALING AND TORQUES. SUBMITTER SUGGESTED WINGLET SHOULD HAVE CHAPTER 5 INSPECTION REQUIREMENT EVERY 5 YEARS, AND PROCEDURE TO INSTALL AND REMOVE.