What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
Narrative: dca mwaa OPS2 vehicle requested permission from dca ATCT to cross runway 36 at runway 3 northeast bound. Instead of crossing runway 36, OPS2 proceeded north on runway 36 and exited on taxiway mike northeast bound. Due to OPS2 vehicle being on the active runway, American airlines flight 1284, an MD-80 was instructed to go around.
As the FAA filed it
NARRATIVE: DCA MWAA OPS2 VEHICLE REQUESTED PERMISSION FROM DCA ATCT TO CROSS RUNWAY 36 AT RUNWAY 3 NORTHEAST BOUND. INSTEAD OF CROSSING RUNWAY 36, OPS2 PROCEEDED NORTH ON RUNWAY 36 AND EXITED ON TAXIWAY MIKE NORTHEAST BOUND. DUE TO OPS2 VEHICLE BEING ON THE ACTIVE RUNWAY, AMERICAN AIRLINES FLIGHT 1284, AN MD-80 WAS INSTRUCTED TO GO AROUND.