What was found
DURING FLIGHT 3177, LEFT BLEED LEAK LIGHT ILLUMINATED. AIR RETURN TO MSP. MAINTENANCE REMOVED AND REPLACED WEU P/N ON OFF 006WS00,S/N ON 1576, S/N OFF 1584, IAW SAAB MM 31-50-05-4. CHECKS GOOD REF 409CARD 215389, SEE CONTINUATION CARD 067901 FOR FURTHER DETAILS.