Aero-Terms are designed to be a daily reminder of the terms,
names, acronyms and explanations of the unique language that
populates the aviation world. Aerospace, sport aviation, fixed
wing, helo, you name it... it's all fair game.
Aero-Terms should serve as a quick but intriguing reminder of
the terms you may use every day, or an introduction to an aspects
of the Aero-World you may not yet be familiar with. ANN also
encourages readers to go beyond the FMI link, and further research
any intriguing terms.
An airplane system, including the propulsion system, the failure
or malfunctioning of which could adversely affect the safety of an
ETOPS flight, or the continued safe flight and landing of an
airplane during an ETOPS diversion. Each ETOPS significant system
is either an ETOPS group 1 significant system or an ETOPS group 2