What was found
DURING C-CHECK, FOUND THE RT MAIN FRAME AT F/STA 699 CRACKED IN THE AFT INBOARD FLANGE. REPLACED MAIN FRAME IAW DC9 SB 53-131 AND ABX REA D953-19377-MR.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING C-CHECK, FOUND THE RT MAIN FRAME AT F/STA 699 CRACKED IN THE AFT INBOARD FLANGE. REPLACED MAIN FRAME IAW DC9 SB 53-131 AND ABX REA D953-19377-MR.