What was found
LOWER AFT BODY OVERHEAT LIGHT CAME ON DURING FLIGHT. LIGHT CAME ON WHILE CLIMBING PAST FL240. THE CONFIGURATION WAS NR 1 BLEED CLOSED, NR 2 BLEED OPEN, NR 3 BLEED OPEN WITH BOTH PACKS ON. AS PER RED TABS, OPENED NR 1 BLEED AND CLOSED NR 2 BLEED. AFTER THIS STEP LIGHT WENT OUT. FLIGHT CONTINUED THIS CONFIGURATION. TIGHTENED SEVERAL CLAMPS IN AFT AIRSTAIR. RAN PACKS WITH AIRSTART UNIT, OPS CK GOOD.