Under what condition is a pilot allowed to stop operating Mode C?

The pilot may stop operating Mode C only when dictated by ATC.

SERA.13010 Pressure-altitude-derived information

Q: What must a pilot do when the aircraft has serviceable Mode C equipment?

The pilot shall continuously operate this mode unless otherwise dictated by ATC.

Q: How often must an ATS unit verify the pressure-altitude-derived level information displayed?

Verification shall be effected at least once by each suitably equipped ATS unit on initial contact with the aircraft concerned or, if this is not feasible, as soon as possible thereafter.

Q: When is the verification of pressure-altitude-derived level information required to be performed by an ATS unit?

The verification shall be effected at least once by each suitably equipped ATS unit on initial contact with the aircraft concerned or, if this is not feasible, as soon as possible thereafter.

Q: Is there any exception to the requirement for ATS units to verify pressure-altitude-derived level information?

Yes, unless otherwise prescribed by the competent authority, verification shall be effected at least once by each suitably equipped ATS unit on initial contact with the aircraft concerned or, if this is not feasible, as soon as possible thereafter.

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SERA.13010 Pressure-altitude-derived information

Regulation (EU) 2020/469

(a) When the aircraft carries serviceable Mode C equipment, the pilot shall continuously operate this mode unless otherwise dictated by ATC.

(b) Unless otherwise prescribed by the competent authority, verification of the
pressure-altitude-derived level information displayed shall be effected at least once by each suitably equipped ATS unit on initial contact with the aircraft concerned or, if this is not feasible, as soon as possible thereafter.

Details

Source-Title: SERA.13010 Pressure-altitude-derived information View latest amendments

Erulesid: ERULES-1963177438-9936 Compare versions

Domain: Air operations, Air traffic management/Air navigation services

Activitytype: Air operations, Air traffic control services (ATC), Air traffic services (ATS)

Applicabilitydate: 27 January, 2022

Entryintoforcedate: 23 April, 2020

Icaoreference: Doc. 4444

Regulatedentity: Flight crew, Air traffic controller, Competent authority, ATC provider

Regulatorysource: Regulation (EU) 2020/469 Navigate

Regulatorysubject: Annex-Section 13: SSR Transponder

Typeofcontent: IR (Implementing rule)

Origin: EASA

Category: EAR

SERA.13010 Pressure-altitude-derived information

Details

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