What was found
DURING MBV INSPECTION, THE SEAT TRACK AT BL 36L WAS FOUND CORRODED. AIRCRAFT REMOVED FROM SERVICE. REPLACED SEAT TRACK WITH NEW ONE PN 7253742-407 IAW SAAB 340 SRM 51-40-21, 51-40-22, 51-40-25 AND 51-40-40. AIRCRAFT RETURNED TO SERVICE.