As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UNSCHEDULED LANDING FOR SMOKE IN COCKPIT. C/W SMOKE IN CABIN WORKSCOPE SENT BY MOC. COMPLIED WITH WORK SCOPE. DURING WORK SCOPE FOUND PA21-009 NOT C/W. THIS WAS C/W DURING W/C. CLEANED COALESCER SOCKS. ON AML 2177087. NO OTHER DEFECTS NOTED DURING WORK SCOPE. OK FOR SERVICE.