What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) On may 26, 2002 northwest airlines flight 1577 a DC9 reported to a.t.c. loss of oil in the right engine. An emergency was declared and the aircraft landed without incident. Maintenance concluded that a failure of the internal workings of the engine caused the oil loss. The right engine was replaced per the DC9 maintenance manual. The aircraft was returned to service. Incident privacy data omitted is considered closed.
As the FAA filed it
(-23) ON MAY 26, 2002 NORTHWEST AIRLINES FLIGHT 1577 A DC9 REPORTED TO A.T.C. LOSS OF OIL IN THE RIGHT ENGINE. AN EMERGENCY WAS DECLARED AND THE AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE CONCLUDED THAT A FAILURE OF THE INTERNAL WORKINGS OF THE ENGINE CAUSED THE OIL LOSS. THE RIGHT ENGINE WAS REPLACED PER THE DC9 MAINTENANCE MANUAL. THE AIRCRAFT WAS RETURNED TO SERVICE.INCIDENT ^PRIVACY DATA OMITTED^ IS CONSIDERED CLOSED.