What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23)Occurence happened during descent. Pilots heard a loud rumbling noise, which they though was airframe noise,then the #1 engine low engine-oil pressure annunciator illuminated, oil pressure indicated zero, approximately 2 seconds prior to engine failure. The crew initiated a sequence to secure the engine, however engine failed prior to execution. Maintenace crew on scene suspects a bearing failure (oil on commpressor blades, oil pump housing failure, with oil and metal in the filter and cowling). Engine is being shipped to dallas for overhaul, and a teardown report will be forwarded to the oak FSDO, as required.
As the FAA filed it
(-23)OCCURENCE HAPPENED DURING DESCENT. PILOTS HEARD A LOUD RUMBLING NOISE, WHICH THEY THOUGH WAS AIRFRAME NOISE,THEN THE #1 ENGINE LOW ENGINE-OIL PRESSURE ANNUNCIATOR ILLUMINATED, OIL PRESSURE INDICATED ZERO, APPROXIMATELY 2 SECONDS PRIOR TO ENGINE FAILURE. THE CREW INITIATED A SEQUENCE TO SECURE THE ENGINE, HOWEVER ENGINE FAILED PRIOR TO EXECUTION. MAINTENACE CREW ON SCENE SUSPECTS A BEARING FAILURE (OIL ON COMMPRESSOR BLADES, OIL PUMP HOUSING FAILURE, WITH OIL AND METAL IN THE FILTER AND COWLING). ENGINE IS BEING SHIPPED TO DALLAS FOR OVERHAUL, AND A TEARDOWN REPORT WILL BE FORWARDED TO THE OAK FSDO, AS REQUIRED.