As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT ATTENDANT HEARD POP IN OVERHEAD NEAR FRONT OF A/C JUST AFTER INITIATION OF T/O POWER. ANOTHER POP AT V1. AFTER T/O SMOKE FILLED CABIN. AFTER DISCOVERY OF SMOKE IN CABIN SHUT OFF PACKS. SMOKE STARTED TO DISSIPATE. FOUND LEFT PACK MIX CHAMBER DUCT BLOWN AND DIST DUCT DAMAGE. REPLACED BOTH DUCTS AND INSPECTED AND REPLACED BOTH COALESCER BAGS. ALL LEAK CK GOOD.