What was found
ON THE GROUND OUT OF THE RAMP WITH APU AND PACS ON, COCKPIT AND CABIN FILLED UP WITH SMOKE VERY RAPIDLY. T/S SYSTEM AND FOUND FWD ACM HARD TO TURN IN CERTAIN SPOTS. R&R FWD ACM. OPS CHECKS GOOD IAW MM 21-51-00.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
ON THE GROUND OUT OF THE RAMP WITH APU AND PACS ON, COCKPIT AND CABIN FILLED UP WITH SMOKE VERY RAPIDLY. T/S SYSTEM AND FOUND FWD ACM HARD TO TURN IN CERTAIN SPOTS. R&R FWD ACM. OPS CHECKS GOOD IAW MM 21-51-00.