What are the two alerting capabilities that an altitude alerting system must have?

It must alert the flight crew when approaching a preselected altitude, and alert the flight crew by at least an aural signal when deviating from a preselected altitude.

Is an aural signal required for the approach alert or only for the deviation alert?

The regulation requires at least an aural signal for the deviation alert; for the approach alert, it only states 'alerting the flight crew' without specifying a signal type.

Does the exemption from the altitude alerting system apply to turbo-jet powered aeroplanes?

No, the exemption only applies to aeroplanes with an MCTOM of 5 700 kg or less and MOPSC of more than nine that meet the specified CofA and registration dates; turbo-jet powered aeroplanes are not exempted under this provision.

CAT.IDE.A.140 Altitude alerting system

Q: Which aeroplanes are required to be equipped with an altitude alerting system under CAT.IDE.A.140?

Turbine propeller powered aeroplanes with an MCTOM of more than 5 700 kg or having an MOPSC of more than nine, and aeroplanes powered by turbo-jet engines.

Q: Which aeroplanes are exempted from the altitude alerting system requirement despite having an MOPSC of more than nine?

Aeroplanes with an MCTOM of 5 700 kg or less, having an MOPSC of more than nine, first issued with an individual CofA before 1 April 1972 and already registered in a Member State on 1 April 1995.

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CAT.IDE.A.140 Altitude alerting system

Regulation (EU) No 965/2012

(a) The following aeroplanes shall be equipped with an altitude alerting system:

(1) turbine propeller powered aeroplanes with an MCTOM of more than 5 700 kg or having an MOPSC of more than nine; and

(2) aeroplanes powered by turbo-jet engines.

(b) The altitude alerting system shall be capable of:

(1) alerting the flight crew when approaching a preselected altitude; and

(2) alerting the flight crew by at least an aural signal, when deviating from a preselected altitude.

(c) Notwithstanding (a), aeroplanes with an MCTOM of 5 700 kg or less, having an MOPSC of more than nine, first issued with an individual CofA before 1 April 1972 and already registered in a Member State on 1 April 1995 are exempted from being equipped with an altitude alerting system.

Details

Source-Title: CAT.IDE.A.140 Altitude alerting system View latest amendments

Erulesid: ERULES-1963177438-12558 Compare versions

Domain: Air operations

Applicabilitydate: 28 October, 2012

Entryintoforcedate: 28 October, 2012

Regulatorysource: Regulation (EU) No 965/2012 Navigate

Regulatorysubject: Part-CAT

Typeofcontent: IR (Implementing rule)

Origin: EASA

Category: EAR