What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
Narrative: while en route from Washington Dulles (iad) to manchester, NH (mht) at 2,000 feet the left engine oil contaminated light illuminated. After shutting down and securing the left engine, the aircraft returned to Washington Dulles. The aircraft landed on runway 19R at iad and taxied to the gate without further incident. There were no injuries to passengers and crew and no damage to the aircraft. Incident is considered closed.
As the FAA filed it
NARRATIVE: WHILE EN ROUTE FROM WASHINGTON DULLES (IAD) TO MANCHESTER, NH (MHT) AT 2,000 FEET THE LEFT ENGINE OIL CONTAMINATED LIGHT ILLUMINATED. AFTER SHUTTING DOWN AND SECURING THE LEFT ENGINE, THE AIRCRAFT RETURNED TO WASHINGTON DULLES. THE AIRCRAFT LANDED ON RUNWAY 19R AT IAD AND TAXIED TO THE GATE WITHOUT FURTHER INCIDENT. THERE WERE NO INJURIES TO PASSENGERS AND CREW AND NO DAMAGE TO THE AIRCRAFT. INCIDENT IS CONSIDERED CLOSED.