As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT CREW PERSONNEL REPORTS ALL FLIGHT ATTENDANTS REPORT SMOKEY SMELL IN CABIN. MAINTENANCE PERSONNEL FOUND APU SUCKING SKYDROL IN DUE TO A LEAK ON LEFT THRUST REVERSER CONTROL VALVE. REPLACED CONTROL VALVE IAW MM 78-31-02, OPS AND LEAKS CHECK GOOD. AIRCRAFT RETURNED TO SERVICE.