What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
Narrative: southwest flight 359 experienced loss of oil on the no. 2 engine 50 miles north of New Orleans, Louisiana. The no. 2 engine was shut down and landing was made without further incident. The oil quantity upon completion of the landing was zero. Oil was lost due to a loose "b" nut on the oil sump line. The aircraft was returned to service in accordance with approved southwest maintenance procedures.
As the FAA filed it
NARRATIVE: SOUTHWEST FLIGHT 359 EXPERIENCED LOSS OF OIL ON THE NO. 2 ENGINE 50 MILES NORTH OF NEW ORLEANS, LOUISIANA. THE NO. 2 ENGINE WAS SHUT DOWN AND LANDING WAS MADE WITHOUT FURTHER INCIDENT. THE OIL QUANTITY UPON COMPLETION OF THE LANDING WAS ZERO. OIL WAS LOST DUE TO A LOOSE "B" NUT ON THE OIL SUMP LINE. THE AIRCRAFT WAS RETURNED TO SERVICE IN ACCORDANCE WITH APPROVED SOUTHWEST MAINTENANCE PROCEDURES.