As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RETURNED TO LAND AFTER SMOKE IN THE COCKPIT AND CABIN SUSPECT PACK 1 "TRANSFERRED TO NRWC 850-DFW-02629". C/A-REF: NRWC 850-DFW-02629 - PER ETN-EM-21-062 - COMPLIED WITH EO-EM-2100-068 ON LT ACM - OPS ANC LEAK CHECK GOOD. FOUND LT ACM DAMAGED. REMOVED AND REPLACED LT AIR CYCLE MACHINE IAW AMM 21-51-03. OPS CHECK GOOD.