What was found
ATB - SMOKE IN AFT CABIN ON CLIMB, AFT LAV SMOKE DETECTORS SOUNDED, WHITE SMOKE, ELECTRICAL SMELL, STARTED 5 ROWS FWD OF MID JUMPSEAT. DISSIPATED AT 3000 FT. WING/ENG A/I OFF CROSSFEEDS CLOSED, APU OFF. FOUND CHUNKS MISSING FROM ACM TURBINE BLADES AND OIL IN DUCTS AFT OF ACM. REPLACED ACM PER M/M. LEAK CHECKS AND OPS CHECKS OKAY.