As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED 'L ENG BLEED' CAUTION AFTER TAKEOFF FROM CLT. AIRCRAFT RETURNED TO CLT AND LANDED WITHOUT INCIDENT. MAINTENANCE TESTED AND REMOVED AND REPLACED THE LT ENG PRSOV PER THE AIRCRAFT MAINTENANCE MANUAL. AIRCRAFT WAS RELEASED FOR SERVICE.