As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF WHEN PACK WAS SELECTED ON THE COCKPIT FILLED WITH SMOKE AND CONTINUED UNTIL NR 1 PACK WAS SHUT OFF BY CREW. MAINTENANCE REMOVED AND REPLACED THE NR 1 ENGINE IAW EMB MM. OPERATIONAL AND LEAK CHECKS WERE SATISFACTORY AND AIRCRAFT WAS RETURNED TO SERVICE. (M)