What was found
AIRCRAFT IN BASE MAINTENANCE: RIGHT HAND WING AFT LOWER PANEL SUPPORT RAIL FROM FLAP TRACK 7 TO FLAPTRACK 8 HAS AREAS OF CORROSION. REMOVED CORROSION AT RIGHT HAND WING AFT LOWER PANEL SUPPORT RAIL FROM FLAP TRACK 7 TO FLAP TRACK 8. PER B737NG SRM 51-10-02-OG, EVALUATED AND FOUND TO BE OUT OF LIMITS, PER B737NG SRM 57-51-02-1A-1. REMOVED AND REPLACED RIGHT HAND WING AFT LOWER PANEL SUPPORT RAIL FROM FLAP TRACK 7 TO FLAP TRACK 8, PER B737 NG SRM 51-40-02-0G AND SRM 51-40-05-0G.