Background

A threat is a condition generated in the operating environment that affects or complicates the performance of a task or a crew’s compliance with applicable standards. Interruptions and distractions are frequent threats facing flight crews and have been shown to lead to significant safety problems.

Introduction

Interruptions (e.g., due to ATC communications) and distractions (e.g., due to a conversation among others on the flight deck) occur frequently during flight. Some cannot be avoided and therefore must be coped with by the flight crew. Others can be minimized or eliminated through training, adoption of effective procedures, discipline and the use of good judgment. If the number of interruptions and distractions is not minimized or the impact of residual interruptions and distractions is not controlled, flight safety can be affected. In particular, when a flight crew is disturbed while monitoring or controlling the aircraft, errors can occur and go undetected.