Managing Additional Functionality in ETSOA: EASA Guidelines for Equipment Authorization
This document outlines how the European Union Aviation Safety Agency (EASA) addresses equipment providing additional functionality under ETSO Authorization (ETSOA). While the ETSO functions are assessed normally, additional non-ETSO functions are accepted on a non-interference basis. Applicants must demonstrate no interference with ETSO functions, and these must be considered at the aircraft installation level. Specific examples of equipment like the Honeywell TR-866B VHF COM Transceiver and Envirotainer RKNe1 highlight these concepts, emphasizing the need for thorough development and potential future amendments to ETSO standards.
Managing Additional Functionality in ETSOA: EASA Guidelines for Equipment Authorization
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Presentation Transcript
Additional Functionality for ETSOA Markus Görnemann EASA
Applications for ETSO Authorisation (ETSOA) where the equipment provides additional functionality are handled by EASA as follows The ETSO functions are assessed as usual The additional non-ETSO functions are accepted on a non interference basis at equipment level The applicant must show that the non-ETSO functions do not interfere with the ETSO functions The non-ETSO functions have to be addressed at aircraft level during the installation Additional Functionality for ETSOA
The following wording is used on the ETSOA to highlight the fact that the equipment provides additional functionality Additional Functionality as listed in the DDP is not covered by the above mentioned ETSO standard(s) and is accepted on a non-interference basis. Additional Functionality for ETSOA
Honeywell TR-866B - VHF COM Transceiver ETSO-2C37e & -2C38e Extended frequency range capability for military frequency band Envirotainer RKNe1 ETSO-C90c Thermal insulated LD3 Air Cargo Container (ULD) with an active heating/cooling system Additional certification requirements have been taken from CS-25/FAR 25 Examples for additional functionality
Assessment of additional functions not done by EASA at equipment level, as no EASA equipment standards exists EASA will not take e. g. Company Specifications covering the additional functionality for assessment on equipment level The means to address this is via STC or amendment of the TC Amendment of ETSO standard should be envisaged to incorporate needed functions for future use Examples for additional functionality
