What is the required change to Section 3.10 of SAE AS8009C for pressure altimeter systems covered by ETSO-C10c?

Delete current Section 3.10 and Table 9, and replace with: 'Altimeters covered by this standard shall not incorporate automatic temperature corrections.'

For which type of altimeter display may altitude range markings be omitted according to the notes added to SAE AS8009C Sections 3.4 and 3.12?

Markings for the altitude range may be omitted for instruments that use a tape-type display.

What tic mark spacing is permitted for tape-type or digital readout altimeters under the new third paragraph added to SAE AS8009C Section 3.11?

Instruments that use a tape-type display or present altitude with a digital readout are permitted to use tic marks every 100 feet with a more prominent mark every 500 feet in agreement with SAE ARP4102/7, Appendix A, Symbols 39 and/or 40.

What wording is permitted for the word 'ALTITUDE' or 'ALT' on the dial according to the change to SAE AS8009C Section 3.12?

The word ALTITUDE or ALT may be marked on the dial in capital letters and may be in the same finish as the numerals.

Under the new paragraph added to SAE AS8009C Section 5, when may some tests be performed only once?

Some of these tests may be performed only once provided that it is demonstrated that this test will demonstrate performance for each article.

For altimeters with an electronic display, what alternative compliance is allowed for SAE AS8009C Section 5.10?

This test may be replaced by showing compliance with SAE AS8034C, Section 3.8, Malfunctions/Failure Indications and Section 4.6, Operating Time.

What performance testing requirement is added for Electronic Display Altimeters under SAE AS8009C Section 5.11?

Electronic displays shall demonstrate their compliance with the SAE AS8034C requirements specified in Table 10 using the test procedures specified in SAE AS8034C, Section 6, as applicable.

What environmental testing requirement is added for Electronic Display Altimeters under SAE AS8009C Section 6.29?

Electronic displays shall demonstrate the compliance of their equipment with the requirements of SAE AS8034B specified in Table 10 using the environmental performance requirements specified in SAE AS8034B, Section 5.

Appendix 1 to ETSO-C10c - Minimum Performance Standard (MPS) for Pressure Altimeter Systems

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Appendix 1 to ETSO-C10c – Minimum Performance Standard (MPS) for Pressure Altimeter Systems

ED Decision 2020/011/R

This Appendix defines the modifications and additions to the MPS for pressure altimeter equipment specified in SAE AS8009C, Pressure Altimeter Systems, dated 24 May 2016.

SAE AS8009C Section(s)	Change
3.4	Add a note following the paragraph to read: Note: Markings for the altitude range may be omitted for instruments that use a tape-type display.
3.10	Delete current Section 3.10 and Table 9. Replace with the following: 3.10 Temperature Corrections Altimeters covered by this standard shall not incorporate automatic temperature corrections.
3.11	Add a new third paragraph to read: Instruments that use a tape-type display or present altitude with a digital readout are permitted to use tic marks every 100 feet with a more prominent mark every 500 feet in agreement with SAE ARP4102/7, Appendix A, Symbols 39 and/or 40.
3.12	Change the third sentence to read: The word ALTITUDE or ALT may be marked on the dial in capital letters and may be in the same finish as the numerals.
3.12	Add a note following the paragraph to read: Note: Markings for the altitude range may be omitted for instruments that use a tape‑type display.
5.	Add a new paragraph: Some of these tests may be performed only once provided that it is demonstrated that this test will demonstrate performance for each article.
5.10	Add a new paragraph: For altimeters with an electronic display, this test may be replaced by showing compliance with SAE AS8034C, Section 3.8, Malfunctions/Failure Indications and Section 4.6, Operating Time.
5.11	Add a requirement for performance testing of Electronic Display Altimeters: Electronic displays shall demonstrate their compliance with the SAE AS8034C requirements specified in Table 10 using the test procedures specified in SAE AS8034C, Section 6, as applicable.
6.29	Add a requirement for environmental testing of Electronic Display Altimeters: Electronic displays shall demonstrate the compliance of their equipment with the requirements of SAE AS8034B specified in Table 10 using the environmental performance requirements specified in SAE AS8034B, Section 5.

[Amdt ETSO/16]

Details

Source-Title: Appendix 1 to ETSO-C10c - Minimum Performance Standard (MPS) for Pressure Altimeter Systems View latest amendments

Erulesid: ERULES-1963177438-18017 Compare versions

Domain: Initial airworthiness

Amendedby: Amendment 16

Applicabilitydate: 25 July, 2020

Entryintoforcedate: 25 July, 2020

Regulatorysource: ED Decision 2020/011/R Navigate

Regulatorysubject: CS-ETSO

Typeofcontent: CS (Certification specification)

Parentir: ETSO-C10c

Origin: EASA

Category: EAR