Flying above ash-contaminated airspace - contingency

[SlowAndSilly]

My airline and many others have started flying over airspace which appear to be contaminated in specified FL's. Typical safe FL's would be 340-350 and above.

My worries then is what to do in the event of an engine failure. One thing is sure: you are going to loose altitude and with increased thrust on the remaining engine you are not exactly following the Airbus/Boeing procedure for VA encounters.

Flying over high mountainous terrain you would plan with a drift down-procedure in case of cabin pressure loss, but I can't see any established contingency procedure (in my airline), which is normal for our industry, in this, for me, new situation?

regards

[lomapaseo]

It's unlikely to be at all altitudes.

Turn and get out of it do not cruise or climb while in it.

Manage the flight with lower power. etc.

[Vizsla]

With anything 4 engined go ETOPS on 2 with 2 in reserve

[Checkboard]

Flight through the ash cloud over Europe will not stop the other engines for the first few hours or so of operation.

It will ruin them, however. (http://www.alpa.org/portals/alpa/volcanicash/03_NASADC8AshDamage.pdf)