What was found
DURING C-CHECK, VERTICAL CHORD CRACKED .375 INCHES IN LENGTH AT BS 178, LBL 5.7 INCH AND WL 181.57. REPAIRED IAW SB 737-53A-1173 PARA B2 PAGE 70. (M)
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING C-CHECK, VERTICAL CHORD CRACKED .375 INCHES IN LENGTH AT BS 178, LBL 5.7 INCH AND WL 181.57. REPAIRED IAW SB 737-53A-1173 PARA B2 PAGE 70. (M)