What was found
L/H WINGLET AREA; STRAKE HAS CORROSION AT THE TIP AREA.<[01] REMOVED CORROSION FROM AREA IAW B737-800 SRM 57-31-01. ORIGINAL THICKNESS IS .050'. REMOVED .039' OF MATERIAL. REMAINING THICKNESS IS .011'. FOUND TO BE OUT OF LIMITS. TOOL# T8224M CAL DUE: 07/NOV/24. REMOVED STRAKE TIP CAP IAW B737-800 SRM 51-40-02. RECEIVED NEW STRAKE TIP CAP PN: 737-2571-11 BN: 4570052 IAW B737-800 AIPC 57-31-00-02. LOCATED AND DRILLED STRAKE TIP CAP IAW 737-800 SRM 51-40-05. APPLIED TOPCOAT IAW B737-800 MMS 57-21-300-801. INSTALLED NEW L/H WINGLET STRAKE TIP CAP IAW B737-800 SRM 51-40-02 & AIPC 57-31-00-02.;[02] L/H WINGLET AREA; STRAKE HAS CORROSION AT THE TIP AREA.