What was found
WHILE IN HEAVY CHECK FOUND CORROSION AFT WET AREA ON RH TRACK BEAM UPPER SHEET JUST FWD OF FRAME 86. REMOVED CORROSION BY BLENDING AT RH TRACK BEAM UPPER SHEET(AFT WET AREA) MATERIAL REMOVED: H-100% LOSS L-.619" W-.294" NOMINAL .063" OUT OF LIMITS. REF EMB SRM 51-75-16 SRM 51-10-03 TOOLING TC2-50431 CAL 11-12-20 TC2-7449 CAL 09-17-20 INSTALLED NEW AFT WET AREA ON RH TRACK BEAM UPPER SHEET JUST FWD OF FRAME 86 REF SRM 51-40-02,51-40-08 APPLIED TOP COAT AT NEW AFT WET AREA ON RH TRACK BEAM UPPER SHEET JUST FWD OF FRAME 86 REF SRM51-23-06 PO# 251151 PN # 170-86101-001