There is no set of ready, out-of-the-box rules to be followed universally. As with any unusual or emergency situation, controllers should exercise their best judgment and expertise when dealing with emergency descent situations. A generic checklist for handling unusual situations is readily available from EUROCONTROL but it is not intended to be exhaustive and is best used in conjunction with local ATC procedures.
Description
This article provides guidance for controllers on what to expect and how to act when dealing with an emergency descent which takes place in controlled airspace. There are some considerations which will not only enable the controller to provide as much support as possible to the aircraft involved, but to also maintain the safety of other aircraft in the vicinity and of the ATC service provision in general.