Under EASA regulations, what does 'significant systems' refer to in the context of pre-departure checks for non-ETOPS two-engined aeroplanes?

Significant systems are those related to the aeroplane's propulsion and any other systems where failure could negatively impact the safety of a non-ETOPS diversion flight, or those crucial for safe flight and landing during a diversion.

According to EASA, what should an operator consider when defining pre-departure checks for significant systems on two-engined aeroplanes without ETOPS approval?

The operator should consider systems such as electrical, hydraulic, pneumatic, flight instrumentation, fuel, flight control, ice protection, engine start and ignition, propulsion system instruments, engine thrust reversers, navigation and communications, back-up power systems, air conditioning and pressurisation, cargo fire detection and suppression, propulsion system fire detection and suppression and emergency equipment.

What systems are considered significant for pre-departure checks on two-engined aeroplanes without ETOPS approval, according to EASA?

Significant systems include the aeroplane propulsion system and any other aeroplane systems whose failure could adversely affect the safety of a non-ETOPS diversion flight, or whose functioning is important to continued safe flight and landing during an aeroplane diversion. Examples are electrical, hydraulic, pneumatic, flight instrumentation, fuel, flight control, ice protection, engine start and ignition, propulsion system instruments, engine thrust reversers, navigation and communications, back-up power systems, air conditioning and pressurisation, cargo fire detection and suppression, propulsion system fire detection and suppression, and emergency equipment.

GM1 CAT.OP.MPA.140(d) Maximum distance from an adequate aerodrome for two-engined aeroplanes without an ETOPS approval

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ED Decision 2021/005/R

SIGNIFICANT SYSTEMS

(a) Definition:

Significant systems to be checked are the aeroplane propulsion system and any other aeroplane systems whose failure could adversely affect the safety of a non-ETOPS diversion flight, or whose functioning is important to continued safe flight and landing during an aeroplane diversion.

(b) When defining the pre-departure check, the operator should give consideration, at least, to the following systems:

(1) electrical;

(2) hydraulic;

(3) pneumatic;

(4) flight instrumentation, including warning and caution systems;

(5) fuel, including potential leakage, fuel drains, fuel boost and fuel transfer;

(6) flight control;

(7) ice protection;

(8) engine start and ignition;

(9) propulsion system instruments;

(10) engine thrust reversers;

(11) navigation and communications, including any route specific long-range navigation and communication equipment;

(12) back-up power systems (i.e. emergency generator and auxiliary power unit);

(13) air conditioning and pressurisation;

(14) cargo fire detection and suppression;

(15) propulsion system fire detection and suppression;

(16) emergency equipment (e.g. ELT, hand fire extinguisher, etc.).

Details

Source-Title: GM1 CAT.OP.MPA.140(d) Maximum distance from an adequate aerodrome for two-engined aeroplanes without an ETOPS approval View latest amendments

Erulesid: ERULES-1963177438-18700 Compare versions

Domain: Air operations

Applicabilitydate: 24 April, 2021

Entryintoforcedate: 24 April, 2021

Regulatorysource: ED Decision 2021/005/R Navigate

Regulatorysubject: Part-CAT

Typeofcontent: GM to IR (Guidance material to implementing rule)

Parentir: CAT.OP.MPA.140 Maximum distance from an adequate aerodrome for two-engined aeroplanes without an ETOPS approval

Origin: EASA

Category: EAR