acquisition of habits according to conclusion from the complex aircraft attitudes with the straight indication of the gyrohorizons, established on the foreign and contemporary domestic air vessels. This indication differs from the indication, used on the types of the air vessels, mastered by crew members earlier (Tu-134, in terms of AN 2).
When things start going wrong, people tend to revert to their earlier training -- not good when East Bloc and rest of world have opposite presentations on the AH:
http://www.pprune.org/tech-log/10337...ian-style.html