As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON DESCENT RECEIVED A STATUS MESSAGE FOR THE LEFT AIR COMPRESSOR AND BURNING ODOR IN CABIN AND COCKPIT. INSPECTED LEFT ACM AND FOUND IT SEIZED. REPLACED LT ACM IAW DMC-B787-A-21-52 -02-01A-720A-A. OPS & LEAK CHECKED GOOD IAW DMC-B787-A-21-00-00-B3A-521-B-A.