As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAH - FLIGHT 2684, THE CREW REPORTED THAT THE NUMBER ONE ENGINE OIL QUANTITY DROPPED TO 3 QTS IN FLIGHT WHILE PRESSURE AND TEMPERATURE REMAINED NORMAL. THE CREW SHUT DOWN THE NUMBER ONE ENGINE AS A PRECAUTION AND THE AIRCRAFT LANDED AT IAH WITHOUT INCIDENT. MAINTENANCE REMOVED AND REPLACED THE NUMBER ONE ENGINE, OPERATIONALLY TESTED WITH NO DEFECTS, AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE. (A)