What was found
DURING ROUTINE C CHECK, FOUND MAIN CARGO COMPARTMENT AFT BATHTUB FITTING CRACKED 2" AT STATION 680.000. REMOVED CRACKED FITTING IAW DC8 SRM 51-1-20D. CLEANED, TREATED AND PRIMED AREA IAW DC8 SRM 51-1-8B. INSTALLED NEW FITTING IAW DC8 SRM 51-1-20D, IAW DC8 SRM 51-3-1.