What was found
DURING 'A' CHECK, FOUND CRACK IN LEFT WHEEL WELL AT STATION 718 ON FRAME FITTING ABOVE TRAPIZOID PANEL. REMOVED STATION 718 FRAME, INTERCOSTALS AND SEAT TRACK IAW DC-9 SB 53-131. INSTALLED NEW FRAME AND ATTACHMENTS DRILLED HOLE IAW DC-9 SRM 51-10-4. INSTALLED FASTENERS IAW DC-9 SRM 51-30-5, 51-30-2, 51-30-8 AND 51-30-1. SPLICED IN SEAT TRACK IAW DC-9 SRM 53-05 FIG 4. INSTALLED MAIN FRAME AND INTERCOSTALS. (M)