NSPECT (NON-DESTRUCTIVE TEST) NDT INSPECTION OF WEB AT 'r CHORD-ABOVE STR ISL AND 15R (STR 5L TO 7L RECOMMENDED AND STR 5R TO 9R). SERVICE BULLETIN (STR SL TO 7L AND STR SR TO 9R) MOS 09-SEP-2004 AFL 25000 (s) SB 737-53A1248 E(A)2 INSPECT (NON-DESTRUCTIVE TEST) NDT INSPECTION OF WEB AT 'r CHORD-AB