What was found
UPON REMOVAL OF AFT PIT DOOR SURROUND FWD SHIELD, FOUND SUPPORT ANGLE TO BE CORRODED.TIPR833K. GROUNDED - YES. REMOVED CORROSION FROM THE AFT PIT DOOR SURROUND ANGLE PER B737-800 SRM 53-60-15-1A-1.2.A. ORIG THICKNESS IS .050" PER B737-800 SRM 53-60-15-0I-1 TABLE 4. REMOVED .011", REMAINING THICKNESS IS .039" AND IS FOUND TO BE OUT OF LIMITS PER B737-800 SRM 53-60-15-1A-1.4.H.(2). REMOVED AND REPLACED AFT PIT DOOR SURROUND SUPPORT ANGLE PN: 146A8125-53 PO: 1054886.4 IAW B737-800 SRM 51-40-02 & SRM 51-40-05.