As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED RECEIVING A LT MAIN EJECTOR CAUTION MESSAGE, ALONG WITH THE FUEL BOOST PUMPS CYCLING DURING CRUISE AT FL220. THE CREW RETURNED TO FIELD AND LANDED WITHOUT INCIDENT. MAINTENANCE TROUBLESHOT, CLEANED THE LT PRIMARY EJECTOR’S PRESSURE SENSOR CONNECTOR PLUG AND PERFORMED CHECKS IAW THE AMM. THE ACFT WAS RELEASED FOR SERVICE.