What was found
CAPTAIN REPORTS WHEN LEFT AIR CYCLE MACHINE (ACM) IS TURNED ON COCKPIT STARTED TO FILL WITH SMOKE. MAINTENANCE DISPATCH, PERFORMED ENG RUNS AND VERIFIED LT ACM FAILURE CAUSING SMOKE. LT ACM DEFERRED PER MEL 21-51-11. (S)
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
CAPTAIN REPORTS WHEN LEFT AIR CYCLE MACHINE (ACM) IS TURNED ON COCKPIT STARTED TO FILL WITH SMOKE. MAINTENANCE DISPATCH, PERFORMED ENG RUNS AND VERIFIED LT ACM FAILURE CAUSING SMOKE. LT ACM DEFERRED PER MEL 21-51-11. (S)