As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MOMENTARY ODOR, SMOKE BURNING, FOLLOWED BY PACK 1 FAIL. ODOR CLEARED IMMEDIATELY. REF FIM 21-20-00-810-801, ACCOMPLISHED INSPECTION AND IDENTIFY SOURCE OF ODOR. FOUND NR 1 ACM TURBINE BLADE DAMAGED. R & R NR 1 ACM IAW AMM 21-51-05. OPS & LEAK CHECKED GOOD.