What was found
DURING C-CHECK TEE FITTING IS CORRODED AT FRAME 20 JUST AFT OF RAMP ANGLES. MAINTENANCE BLENDED CORROSION, AND FOUND TO BE WITHIN LIMITS IAW SRM 53-21-10 ALODINED, PRIMED AND TOPCOATED IAW CPM 51-21-04. THE ACFT WAS APPROVED FOR RETURN TO SERVICE.