What was found
TRANSITION PANEL STATION 500C - 500D +8 RBL 24 HAS CORROSION. GROUNDED - YES. REMOVED CORROSION FROM TRANSITION PNL AT STA 500C TO 500D+8 RBL 24 ORIGINAL THICKNESS IS .040 IAW B737-900 SRM 53-30-53-01-2. MAT LOSS .010 REMAINING THICKNESS .030. FOUND TO BE OUT OF LIMITS IAW B737-900 SRM 53-00-53. MAT ID FOR NEW TRANSITION PNL AND SPLICE # BAC1496-444 7075-T62IAW B737-900 SRM 53-00-53-2R-5. FABRICATED NEW TRANSITON PNL AND SPLICE IAW B737-900 SRM 53-00-53-2R-5 INSTALLED NEW TRANSITION PNL AND SPLICE AT STA 500C-500D+8 RBL-24 IAW B737-900 SRM 51-40-02.