On Sep 16, 5:27*am, wrote:
jason219 wrote:

This can not happen.

If you reduce or eliminate engine power,


By the OP's "all attempts to decrease altitude have failed" statement,
I take it that moving the throttle has for some reason stopped ceased
to have an effect on N1.

The aircraft would fly right up to its ceiling altitude before it kind
of levels out until the A-1 exhausts. If the oxygen masks don't drop
for whatever reason, there'll at least be mercifully painless deaths
to the pax.

Ramapriya