What was found
DEFECT 702276: DURING COCKPIT PREFLIGHT FOUND LEFT PACK AMBER LIGHT ILLUMINATED. PACK LIGHT WOULD NOT EXTINGUISH UNDER MEL 21-32. FOLLOWING TAKEOFF AND CLIMB TO 7000' AND AFTER COMPLETING THE LEFT PACK INOP SUPPLEMENTARY AND MEL PROCEDURE, THE RIGHT BLEED TRIP LIGHT ILLUMINATED. DECLARED EMERGENCY. 702277: AIR RETURN TO MSP OVERWEIGHT LANDING NORMAL TOUCH DOWN & ROLLOUT NO ISSUES NOTED- - - RESOLUTION: R&R'D LEFT TEMP CONTROL VALVE ALONG WITH SENSE LINE OFF THE ACM PER AMM 21-51-10 LEAK CHECK AND OPS CHECK GOOD. THIS CLEARS MEL 21-1-1-A. PERFORMED OVERWEIGHT LANDING INSPECTION IAW AMM 05-51-35 NO DAMAGE FOUND. OK FOR SERVICE