2022-03 · NASA ASRS report 1885124
A319 flight crew reported low engine oil quantity on descent. The flight crew elected to divert and make a precautionary landing.
On initial descent into ZZZ; descending out of FL290 we noticed a flashing green oil qty indication at 4 qts on the right #2 engine. Our initial thought was to continue to ZZZ which was 130NM away if the oil qty stayed at 4; however the oil qty continued to drop at a rate which required action on our part to avoid a possible engine failure. I then became Pilot Monitoring; and after [requesting priority handling] with ATC we asked for vectors to ZZZ1. I spoke to Dispatch on the radio to tell them our issue and planned divert. We continued our accelerated descent into ZZZ1 as oil qty continued to drop. The pilot-to-pilot interaction was busy and communication to one another was adequate. The First Officer then asked for a 360 turn around 10;000-15;000 ft. to give us extra time. I did not think a 360 was a good idea as we were [a priority] aircraft and I felt getting closer to the airport was a better course of action. A potential error was the pilot-to-pilot communication together on the best way to get to the airport the fastest; but it was quickly agreed on to go direct.I then assumed PF (Pilot Flying) duties and asked the FO (First Officer) to discontinue the 360 and get vectors for a right downwind for Runway XX and selected an airspeed above 250 kts. to get down to altitude for the FAF. Going above 250 kts. surprised the First Officer; but I indicated we were [a priority] aircraft and getting down to altitude was a priority by going above 250 kts. We did not let ATC know of our increased airspeed; but things were busy and they were giving us vectors to get established on course at our request. Our vectors took us to right base and then final where we marginally overshot the Runway XX final approach course by 1-2NM as I was trying to get a little more time to slow and configure; almost an S-type maneuvering; and we were cleared for the visual approach. Configuration on final was properly done with no over speeds and good aircraft control; at this time we still had good oil pressure; but oil qty was now indicating 0.0. We were stable at all-gates on short final and we landed successfully. On taxi-in we decided to shut engine #2 down to prevent possible damage. We had no ECAMs during the flight; we thankfully maintained oil pressure during the flight; but on the post flight aircraft inspection there was noticeable oil loss as seen by oil leaking out of the right engine cowl.
We were either in the descent to 24;000 ft. or already there; when the Captain noticed that the number 2 engine oil quantity was around 4 quarts. Analyzing the situation; we noticed that the number was getting smaller. After a brief discussion we decided to [request priority handling] and that ZZZ1 was our best option; since ZZZ was still approximately still 170 NM away. The Captain landed the plane without further incident. Services were very helpful and had us park at a remote location on the airfield.
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Source: NASA Aviation Safety Reporting System (public domain). Reports are voluntary submissions and are not verified by NASA.
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