What was found
DFW - DURING OVERNIGHT CHECK, MAINTENANCE FOUND THE EMERGENCY LIGHTS ILLUMINATED INTERMITTENTLY. REMOVED AND INSPECTED POWER SUPPLIES AT POSITION 122AZ, 161AZ, 131CT, 141AZ, 141BZ IAW SAAB AMM. PERFORMED OPERATIONAL CHECK SATISFACTORILY AND RETURNED AIRCRAFT TO SERVICE. REF: OPER CNTRL NR SIMA981942, AND, 98ZZZX3211 THROUGH 98ZZZX3213.