As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 1750 LAS-PHL - RTF / EMERGENCY LANDING - CREW RECEIVED NR 1 ENGINE COMPRESSOR VANE FAULT AT 5000FT. AN EMERGENCY WAS DECLARED AND AIRCRAFT RETURNED TO LAS. MAINTENANCE FOUND NO FAULTS AND AIRCRAFT WAS CLEARED FOR CONTINUED SERVICE.