As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: FA'S REPORTED GRAY HAZY MODERATE SMOKE AND SMELL DURING THE LIFTOFF AROUND 1000FT. DECESION MAD TO DIVERT TO IAD AN EMERGENCY WAS DECLARED AND AIRCRAFT LANDED OVERWEIGHT WITHOUT INCIDENT. MAINTENANCE FOOUND AIR CYCLE MACHINE SEIZED AND REPLACED #2 ACM AND FLOW CONTROL SHUTOFF VALVE IAW AMM 21-51-01 AND AMM 21-51-04.