EXTENDING ETOPS DIVERSION TIME - TECHNICAL MATTERS

SAFETY IS SERIOUSLY ENDANGERED

Safety impact of ALPA/ATA proposal
Non compliance of the safety level with FAR 25.1309

AIRWORTHINESS IS PARTICULARLY A PROBLEM

Parameters in the Risk Model
Engine Failure risk
Twin-engines inefficiency  to generate warmth

THE OPERATIONAL ENVIRONMENT IS A WORRY

Critical diversion airports
Airport capability
Polar winter temperatures
Communications
GLOBALink/HF availability