As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING DESCENT THE CREW REPORTED ODOR AND SMOKE HAZE IN THE COCKPIT AND CABIN WITH A LAV SMOKE WARNING. THE AIRCRAFT LANDED AT IAH WITHOUT INCIDENT WHERE MAINTENANCE REMOVED AND REPLACED THE NUMBER ONE ENGINE, OPERATIONALLY CHECKED GOOD. ALL IAW EXPRESSJET TASK CARD 6271001, AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.