Active Failures (25%) (Lack of Discipline, not adhering to rules/procedures, short cuts)
Passive Failures (20%) (Communication problems, forgetfulness, fatigue, coordination breakdown)
Proficiency/Judgement Failures (50%) (Inappropriate flight management, wrong handling, decision-making deficiencies,
lack of experience)
Incapacitation (5%) (Crew member is unable to perform his functions due to physical/psychological inability)
Source: Yahya Abd Rahman
Malaysian Bengkel (Workshop) on Accident Prevention, 1990
