As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BOI - CREW REPORTS BOOST PUMPS CYCLED FOR 40 MINUTES WHILE AT FLIGHT LEVEL 390. MAINTENANCE INSPECTED THE AIRCRAFT AND REPLACED THE PRIMARY EJECTOR PRESSURE SENSOR. OPERATIONAL AND LEAK CHECKS WERE GOOD. THE AIRCRAFT WAS RETURNED TO SERVICE.