Narrative:

During cruise at FL390 (wrong way) approximately 1 hour into the flight; my first officer and I felt and heard what sounded like an engine vibration. We checked the system display engine page and both engines were well within the normal limits with no adverse indications. The vibration only lasted probably 15 seconds and went away. Our flight conditions were occasional light chop with some mild mountain wave at the time. We dismissed the event as a transient engine sync/frequency due to the flight conditions and it really did not sound any different than many other times that power changes are being made in cruise. About 5 mins later; we felt the same vibration and at that time got a level 1 ECAM for engine #1 oil filter clog which is crew awareness. ATC switched our frequency at this time and we gave them a heads up that we might have an engine problem and to stand by. The vibration seemed to go away; and as we checked the engine 'sd' page we noticed a fluctuating oil quantity; followed by a rapid oil pressure drop and a rapid oil temperature rise. We initiated the engine shutdown and followed the ECAM actions which were triggered by the low oil pressure ECAM. We then ran the engine fail at cruise checklist and declared an emergency. We considered ZZZ the closest suitable airport and requested an initial vector for ZZZ which was a 90 degree left turn at 120 mi. We set up the box ordered WX and gave the flight attendants an advisory that we had shut down the left engine and we were going to ZZZ. I gave them the option of doing a short preparation (which they did) with an ETA of 20 mins. I made a PA to the passenger that we had a mechanical issue and that we were diverting to ZZZ as a precautionary measure. We then had enough time to follow the procedures after engine shutdown follow-up items and do a good brief on the approach. We landed flaps 3 degrees on runway xxr at ZZZ without any problems. We waited for the crash fire rescue equipment personnel to visually clear the outside of the aircraft. They reported all clear and we agreed that all of the aircraft indications were normal within the flight deck. We taxied to a gate and deplaned the passenger.

Related reports:

Google
 

Original NASA ASRS Text

Title: A319 FLT CREW EXPERIENCES CLOGGED OIL FILTER; LOSS OF FLUID AND HIGH OIL TEMPERATURE IN LEFT ENGINE. DIVERT TO NEAREST SUITABLE ARPT.

Narrative: DURING CRUISE AT FL390 (WRONG WAY) APPROX 1 HR INTO THE FLT; MY FO AND I FELT AND HEARD WHAT SOUNDED LIKE AN ENG VIBRATION. WE CHKED THE SYS DISPLAY ENG PAGE AND BOTH ENGS WERE WELL WITHIN THE NORMAL LIMITS WITH NO ADVERSE INDICATIONS. THE VIBRATION ONLY LASTED PROBABLY 15 SECONDS AND WENT AWAY. OUR FLT CONDITIONS WERE OCCASIONAL LIGHT CHOP WITH SOME MILD MOUNTAIN WAVE AT THE TIME. WE DISMISSED THE EVENT AS A TRANSIENT ENG SYNC/FREQ DUE TO THE FLT CONDITIONS AND IT REALLY DID NOT SOUND ANY DIFFERENT THAN MANY OTHER TIMES THAT PWR CHANGES ARE BEING MADE IN CRUISE. ABOUT 5 MINS LATER; WE FELT THE SAME VIBRATION AND AT THAT TIME GOT A LEVEL 1 ECAM FOR ENG #1 OIL FILTER CLOG WHICH IS CREW AWARENESS. ATC SWITCHED OUR FREQ AT THIS TIME AND WE GAVE THEM A HEADS UP THAT WE MIGHT HAVE AN ENG PROB AND TO STAND BY. THE VIBRATION SEEMED TO GO AWAY; AND AS WE CHKED THE ENG 'SD' PAGE WE NOTICED A FLUCTUATING OIL QUANTITY; FOLLOWED BY A RAPID OIL PRESSURE DROP AND A RAPID OIL TEMP RISE. WE INITIATED THE ENG SHUTDOWN AND FOLLOWED THE ECAM ACTIONS WHICH WERE TRIGGERED BY THE LOW OIL PRESSURE ECAM. WE THEN RAN THE ENG FAIL AT CRUISE CHKLIST AND DECLARED AN EMER. WE CONSIDERED ZZZ THE CLOSEST SUITABLE ARPT AND REQUESTED AN INITIAL VECTOR FOR ZZZ WHICH WAS A 90 DEG L TURN AT 120 MI. WE SET UP THE BOX ORDERED WX AND GAVE THE FLT ATTENDANTS AN ADVISORY THAT WE HAD SHUT DOWN THE L ENG AND WE WERE GOING TO ZZZ. I GAVE THEM THE OPTION OF DOING A SHORT PREPARATION (WHICH THEY DID) WITH AN ETA OF 20 MINS. I MADE A PA TO THE PAX THAT WE HAD A MECHANICAL ISSUE AND THAT WE WERE DIVERTING TO ZZZ AS A PRECAUTIONARY MEASURE. WE THEN HAD ENOUGH TIME TO FOLLOW THE PROCS AFTER ENG SHUTDOWN FOLLOW-UP ITEMS AND DO A GOOD BRIEF ON THE APCH. WE LANDED FLAPS 3 DEGS ON RWY XXR AT ZZZ WITHOUT ANY PROBS. WE WAITED FOR THE CFR PERSONNEL TO VISUALLY CLR THE OUTSIDE OF THE ACFT. THEY RPTED ALL CLR AND WE AGREED THAT ALL OF THE ACFT INDICATIONS WERE NORMAL WITHIN THE FLT DECK. WE TAXIED TO A GATE AND DEPLANED THE PAX.

Data retrieved from NASA's ASRS site as of May 2009 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.