What best describes an ETOPS Significant System?

What best describes an ETOPS Significant System?

• A. An airplane system whose failure or malfunction could adversely affect ETOPS safety, including potential loss of thrust control, and is categorized as ETOPS group 1 or 2
• B. An avionics accessory not essential to flight
• C. A system only found on all-cargo aircraft
• D. A passenger cabin environment system

Answer: (A)

ETOPS Significant Systems are those airplane systems whose failure could adversely affect ETOPS safety, including the potential loss of thrust control, and they are classified into ETOPS group 1 or 2. This concept matters because extended over-water routes require identifying and protecting the systems whose malfunction would directly threaten safe continued flight, so the design, redundancy, and maintenance plans address these critical items. Nonessential avionics accessories, systems found only on certain configurations (like cargo-only aircraft), or passenger cabin environment systems don’t meet the signficant-ETOPS criterion because their failure wouldn’t inherently jeopardize ETOPS safety.

ETOPS Significant Systems are those airplane systems whose failure could adversely affect ETOPS safety, including the potential loss of thrust control, and they are classified into ETOPS group 1 or 2. This concept matters because extended over-water routes require identifying and protecting the systems whose malfunction would directly threaten safe continued flight, so the design, redundancy, and maintenance plans address these critical items. Nonessential avionics accessories, systems found only on certain configurations (like cargo-only aircraft), or passenger cabin environment systems don’t meet the signficant-ETOPS criterion because their failure wouldn’t inherently jeopardize ETOPS safety.