What was found
ABI - DURING A MBV INSPECTION, SEAT TRACK 18.3L WAS FOUND CORRODED BEYOND SRM LIMITS FROM STATION 297-329. CUT OUT 32 INCH SECTION OF EXISTING SEAT TRACK. FABRICATED A 32 INCH LONG EXTRUSION OF 4650000-043 SHPAL 7075-T76511 EXTRUDED MATERIAL. FABRICATED A 15 INCH LONG U-BEAM OF PLAL 7075-T7351 MATERIAL. POSITIONED REPAIR U-BEAM INSIDE EXISTING SEAT TRACK AND DRILLED HOLES. INSTALLED IN AIRCRAFT. PRIMED AND PAINTED FASTENES. WORK DONE IAW SAAB SRM 53-70-60 AND STANDARD SRM PROCEDURES. AIRCRAFT OK FOR SERVICE. (M)