What was found
INSPECTION TYPE:C2 AFT LOWER CARGO PIT STA 1220 BELOW CUSP AT LONG 21R FITTING CRACKED. BLEND OUT CRACK IAW DC8 SRM 51-1-8. OUT OF LIMITS, PERFORMED HFEC IAW MIL-STD-271R TO VERIFY CRACK. REMOVED OLD FITTING. REMOVED AND REPLACED NEW FITTING FROM BORING P/N 375496-502N, DRILLED HOLES IN NEW FITTING IAW DC8 SRM 51-3-2. INSTALLED FITTING IAW DC8 SRM 51-1-21, 51-1-20D. ALODINED AND PRIMED IAW DC8 SRM 51-1-8.