What was found
LEFT PACK PRODUCED SMOKE ON THROTTLE BACK FOR DESCENT. (FLT 5875) ALL OPERATIONAL CHECKS WITH VARIOUS BLEED SOURCES AND SETTINGS NORMAL.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
LEFT PACK PRODUCED SMOKE ON THROTTLE BACK FOR DESCENT. (FLT 5875) ALL OPERATIONAL CHECKS WITH VARIOUS BLEED SOURCES AND SETTINGS NORMAL.