As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING FLIGHT 2801, LEFT BLEED AIR LEAK LIGHT ILLUMINATED INFLIGHT FOLLOWED QRH AFTER BLEEDS CLOSED 10 MINUTES LIGHT EXTINGUISHED. AIR RETURN TO MSP. MAINTENANCE REMOVED AND REPLACED FIRE WIRE IAW 36-23-10-2 AND PERI SEALS ON LT FLAP COVE, OPS CHECK AND LEAK CHECK GOOD.