As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SMOKE IN CARGO COMPARTMENT. NOT RECOGNIZABLE ODOR. REQUIRED USE OF OXYGEN MASKS AND EMERGENCY DESCENT. FOUND OLD ACM LEAKING OIL AND BYPASSING INTERNALLY CAUSING SMOKE IN CARGO COMPARTMENT. REMOVED AND REPLACED RIGHT HAND A.C.M. PER MM 21-51 AS REQUIRED. TESTED A.C.M. RAN UNIT. OKAY FOR SERVICE.