Abstract
The article is devoted to the problems of intellectual support for the aircraft crew in a situation when, in the process of performing a flight task by the crew, a conflict arises “The stage of the flight task being performed is an immediate threat to its fulfillment”. Onboard intelligent tactical-level systems provide the crew with intelligent support in this situation. They identify an immediate threat among the observed potential threats (fix a collision), recommend to the crew a way to counter this threat (solve the task of operational goal setting that occurs to the crew when a collision occurs), recommend to the crew the details of this method. One of these systems is presented, implemented in the form of an on-board operationally advising expert system for the final phases of aircraft landing BOSES-P. Its demonstration sample, adapted to the on-board information environment of the MS-21 aircraft, successfully passed research tests with a professional pilot at the MS-21 semi-natural modeling stand at the GosNIIAS FAA.