As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LAS - FLT 1598 - EN ROUTE LAS-ORD, TAIL COMPARTMENT TEMPERATURE HIGH LIGHT ILLUMINATED SHORTLY AFTER TAKEOFF FROM LAS. RETURNED LAS AND LAND WITHOUT INCIDENT. REPLACED BOTH LEFT AND RIGHT TAIL COMPARTMENT TEMPERATURE SENSORS. SYSTEM GROUND CHECKED NORMAL OPERATION. (M)