They know how long the transient low-level indication lasted --
according to AW, the low-level indication had already gone back to
normal as the engines began their power-down.

Why not say "Our low-level sensitivity is too great" and add a
requirement that the indication must last for T+delta milliseconds
before the engines are shut down (where T is the transient duration, and
delta is some reasonable fudge factor that takes into account the amount
of fluid remaining in the system when a valid low-level indication is
detected).

--
Reed Snellenberger
GPG KeyID: 5A978843
rsnellenberger-at-houston.rr.com