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DAT.TR.105 Required interfaces

SPECIFIC REQUIREMENTS FOR PROVIDERS OF DATA SERVICES · Regulation (EU) 2017/373 · EAR revision 12 Mar 2025

IRImplementing rule

DAT.TR.105Required interfaces

The DAT provider shall ensure the necessary formal interfaces with:

(a)aeronautical data source(s) and/or other DAT providers;

(b)the equipment design approval holder for type 2 DAT provision, or an applicant for an approval of that specific design;

(c)aircraft operators, as applicable.

IR · DAT.TR.105 — Regulation (EU) 2017/373 · ED Decision 2017/001/R · ATM/ANS Easy Access Rules · EAR revision 12 Mar 2025

AMCAcceptable means of compliance

AMC1 DAT.TR.105(a)Required interfaces

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INTERFACES WITH THE AERONAUTICAL DATA SOURCE AND/OR OTHER DAT PROVIDERS

(a)The DAT provider should demonstrate that formal interfaces with aeronautical data sources or other DAT providers are implemented. Procedures should be established to communicate instances of erroneous, inconsistent or missing data to such providers and monitor that timely and effective responses are received.

(b)Where resolution and correction cannot be obtained for data that has been called into question, the DAT provider’s procedures for dealing with this situation should ensure that the DAT provider communicates the alteration or removal of data which the aeronautical data source and/or other DAT provider has not concurred with or resolved. The DAT provider’s procedures should confirm that effective controls are in place to ensure that an unsafe product is not released and that such concerns are communicated to customers in accordance with the requirements laid down in DAT.OR.200.

AMC · AMC1 DAT.TR.105(a) — Regulation (EU) 2017/373 · ED Decision 2017/001/R · ATM/ANS Easy Access Rules · EAR revision 12 Mar 2025

AMCAcceptable means of compliance

AMC1 DAT.TR.105(b)Required interfaces

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INTERFACES WITH THE AIRCRAFT EQUIPMENT DESIGN APPROVAL HOLDER FOR TYPE 2 DAT PROVISION The DAT provider should demonstrate that formal interfaces exist with the equipment design approval holder. In particular, the DAT provider’s procedures should stipulate that the equipment design approval holder communicates and responds to issues and constraints concerning compatibility/eligibility for installation between their equipment and the databases of the DAT provider.

AMC · AMC1 DAT.TR.105(b) — Regulation (EU) 2017/373 · ED Decision 2017/001/R · ATM/ANS Easy Access Rules · EAR revision 12 Mar 2025

AMCAcceptable means of compliance

AMC1 DAT.TR.105(c)Required interfaces

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INTERFACES WITH AIRCRAFT OPERATORS — TYPE 2 DAT PROVIDERS The Type 2 DAT provider should demonstrate that a formal interface with aircraft operators is in place to confirm that operators’ requests are clearly defined and subject to review.

AMC · AMC1 DAT.TR.105(c) — Regulation (EU) 2017/373 · ED Decision 2017/001/R · ATM/ANS Easy Access Rules · EAR revision 12 Mar 2025

All rules in SUBPART B — TECHNICAL REQUIREMENTS FOR PROVIDERS OF DATA SERVICES (DAT.TR)

Consolidated from the EASA Easy Access Rules (revision 12 Mar 2025, extracted 17 Aug 2026) for convenience. Not the official publication — verify against the Official Journal of the European Union and the EASA publications before operational use.

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