September 21, 2021

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Considerations Related to Continuing Airworthiness EASA Bilateral Agreement (BASA) – Sofema Aviation Services (SAS) www.sassofia.com looks at the primary features of the relationship between EASA and other regulatory bodies.

Introduction

The role of EASA is to form relationships with:

  • Civil aviation authorities
  • Regional and international organizations

The objective is to enhance aviation safety and support the free movement of European products and services and promote European and global safety standards.

Bilateral Agreements and Working Arrangements

EASA assists non-European authorities when they certify European products and services.

Reciprocally, it issues European certificates for non-European products.

  • The legal tools to do so are bilateral agreements and Working Arrangements.

BASA

AMC1 M.A.501(a)(1)/AMC1 145.A.42(a)(i)/AMC1 ML.A.501(a)(ii) refers to a release document issued by an organisation under the terms of any existing bilateral agreement signed by the European Union.

A Bilateral Aviation Safety Agreement (BASA) is signed between the EU (and its Member States) and a non-EU country.

  • A BASA is used when the cooperation between the two sides aims at the mutual acceptance of certificates.
  • EASA supports the European Commission during the negotiation and implementation of such agreements. So far, the EU has concluded a BASA with the US, Canada and Brazil.
  • EASA additionally has an agreement limited to Design & Production with the following:

o Japan

o China

o United Kingdom

EASA Working Arrangement

A Working Arrangement (WA) is usually signed between EASA and the authority of a non-EU country, or a regional or international organisation.

  • A WA covers matters of technical nature. It is typically used to facilitate EASAā€™s certification tasks or the validation by a foreign authority of EASA certificates.

Note: Unlike BASAs, WAs do not allow for the mutual recognition of certificates.

EASA directly negotiates and concludes such arrangements.

What is the Role of a Dual Release on FAA Form 8130-3 in accordance with EU/US BASA?

A DUAL release is required for acceptance of USED engine/components from a US-based repair station. For details of the arrangement See HereĀ 

NOTE: Š single EASA release on Form 8130-3 with only ā€œOther regulation specified in block 12ā€ ticked in block 14a is also acceptable for USED engine/components.

This is to cover the case where component maintenance includes the installation of a used (sub)component released on an EASA Form 1 with ā€˜single releaseā€™ only, and therefore where the assembly is not eligible for US-registered aircraft.

CAUTION: DUAL release is not acceptable for ā€˜rebuiltā€™ engine/components because EASA recognises the term ā€˜rebuiltā€™ only as a manufacturing/production release (not a maintenance release) and only for the engine.

Concerning Importation of Rebuilt Engine & Components from the US

Under the terms of the EU/US bilateral agreement (BASA)

The import of an engine with a ā€˜rebuiltā€™ status in block 11, may only be accepted when it has been released by the original engine manufacturer on a Form 8130-3 using the blocks 13a. to 13e.

Please note that Form 8130-3 with ā€˜rebuiltā€™ status is not acceptable for components other than the engine.

ClarificationĀ – Rebuilt engines should either be released REPAIRED/OVERHAULEDā€¦ (right side) or NEW (left side).

Sofema Aviation ServicesĀ www.sassofia.comĀ and Sofema OnlineĀ www.sofemaonline.com offer EASA & FAA Regulatory Compliant and Vocational Training. Please email us at team@sassofia.com if you want to know more about our services.Ā 

Tags:

AMC1 145.A.42(a)(i), AMC1 M.A.501(a)(1), AMC1 ML.A.501(a)(ii), BASA, Bilateral Agreements, Civil Aviation Authorities, Compliance, Continuing Airworthiness (CA), EASA, EASA Bilateral Agreement, EASA Working Arrangement, European certificates, FAA, International Organizations, Regional Organizations, SAS blogs, WA