What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) On 08/22/01, twa flight 731 while enroute bdl to stl, the #1 engine oil quantity decreased to zero, followed by low oil pressure light and loss of pressure. An emergency was declared. The crew followed engine failure procedure. Contract maint found that a stud on the oil filter housing had back out. The engine was removed from service. An SDR is to be submitted.
As the FAA filed it
(-23) ON 08/22/01, TWA FLIGHT 731 WHILE ENROUTE BDL TO STL, THE #1 ENGINE OIL QUANTITY DECREASED TO ZERO, FOLLOWED BY LOW OIL PRESSURE LIGHT AND LOSS OF PRESSURE. AN EMERGENCY WAS DECLARED. THE CREW FOLLOWED ENGINE FAILURE PROCEDURE. CONTRACT MAINT FOUND THAT A STUD ON THE OIL FILTER HOUSING HAD BACK OUT. THE ENGINE WAS REMOVED FROM SERVICE. AN SDR IS TO BE SUBMITTED.