EASA Form 1 and FAA Form 8130-3: What to Check before Acceptance

What the release document establishes

An EASA Form 1 records production conformity or the maintenance work released for an identified item. FAA Form 8130-3 can serve a corresponding purpose under the applicable EU–US arrangements. Neither document, by itself, establishes that the component may be installed on your particular aircraft.

Start with two questions: is this a production release or a maintenance release, and under which regulatory approval was it issued? A supplier’s address or the form’s heading cannot answer both.

Common release-document routes under the EASA system

This table covers common component routes, subject to the relevant approval and agreement scope. The US rows concern the EU–US arrangements; they are not worldwide equivalence rules. Installation eligibility remains a separate check in every row.

The primary sources for the US rows are the Technical Implementation Procedures (TIP), Revision 7 and 7.1 and Maintenance Annex Guidance (MAG), Change 10, Section B Appendix 1. EASA’s release-document explanation connects new and used status to those two sources; its rebuilt-engine explanation confirms the engine-only limitation.

Check territory as well as approval: the EU–US agreement page explains that EASA membership alone does not extend that agreement to Norway, Iceland, Switzerland or Liechtenstein. Other bilateral arrangements require their own checks.

Read blocks 13 and 14 together with block 12

Blocks 13a–13e are the production side. On EASA Form 1, block 13a distinguishes manufacture to approved design data, with safe-condition certification, from manufacture to non-approved design data identified in block 12. The latter is not interchangeable with an ordinary approved-design production release. Part-21 Appendix I contains the form; the production-organisation guide explains the approval context.

Blocks 14a–14e are the maintenance side. Read which regulatory basis is certified, the authorised signature, approval reference and date. Part-M Appendix II supplies the maintenance completion instructions. A Form 1 issued under a Part-CAO approval, for example, uses the other-regulation box and its prescribed statement; the form’s name alone does not make it a Part-145 release.

Block 11 identifies status/work; block 12 explains its extent. Inspected/tested and overhauled are distinct maintenance statuses. Block 12 describes the work directly or references supporting records. Depending on the work, these can include maintenance-data revisions, airworthiness directive (AD) or service bulletin compliance, repairs, modifications and life-limited-part status. These are contextual examples, not fields every certificate must contain.

For US dual maintenance release, MAG §10.2–10.6 requires the EASA statement and approval number in block 12; the FAA repair station certificate number goes in block 14c. In the specific EASA-only case described in §10.13, only the other-regulation box is selected and the prescribed remarks identify the limitations. A tick without the supporting release basis is insufficient.

A receiving-document checklist

Use this practical sequence within your organisation’s approved procedures. AMC1 145.A.42(b)(i), an acceptable means of compliance, describes incoming physical inspection, documentation/data review and supplier evaluation.

1. Identify the route. Establish production or maintenance status, regulatory origin, destination context and the applicable bilateral conditions. Confirm the issuing organisation holds the approval relevant to the release.
2. Match the item. Compare block 4’s issuer and blocks 7–10’s description, part number, quantity and serial number, where applicable, with the physical item and records. Resolve discrepancies before acceptance.
3. Read the complete certification. Check blocks 11–14, signatures, approval references, dates and every referenced attachment. Identify incomplete work or limitations in block 12.
4. Check condition and records. Inspect the item and review the supporting data required for its status, including life information where applicable. An acceptable form does not remove the physical receiving check.
5. Confirm the intended installation. Check the part number, modification standard and limitations against the particular aircraft or assembly’s maintenance data. Guidance in GM1 145.A.42(b)(ii) explains this check.

The installation requirement is explicit:

A receiving check therefore cannot finish the installation task. The Form 1’s user/installer statement also requires the appropriate installation certification in the aircraft maintenance records before flight. For the design-approval distinction, read the ETSO and installation-approval guide.

When a Form 1 is not required

For new parts and appliances, Part-21 connects the document to safe condition and marking:

Points (b) and (c) then provide defined exceptions. Examples include standard parts and parts specifically identified by the design approval holder as having a negligible safety effect if non-conforming. That second case depends on the holder’s designation in the instructions for continued airworthiness, including any installer verification activities; it is not the purchaser’s informal judgement.

The installer must hold the manufacturer-issued document required by point (c): part name, part number, declaration of conformity with design data and issuance date. Read the complete 21.A.307 exception list before relying on one.

For maintenance acceptance, 145.A.42(a)(iv)–(v) separately addresses standard parts and raw/consumable materials. Standard parts need evidence traceable to the applicable standard; materials need the required specification and traceability documentation. A Form 1 is not the universal document for every consumable.

Marking and EPA: retain the physical link

Under 21.A.804, parts and appliances carry permanent, legible manufacturer identification and the part number defined by the design data. The letters EPA apply in specified cases involving approved design data that does not belong to the related product’s type-certificate holder. Exceptions include European Technical Standard Order (ETSO) articles and 21.A.307(b) parts. EPA is therefore not a universal approval stamp.

If marking is impractical, the derogation in 21.A.804(b) requires EASA’s agreement; the missing information must be included in the authorised release document accompanying the item or its container. Small size alone does not establish that derogation.

Source scope and next reading

This reference uses the Initial Airworthiness EAR revision 2025-11-27, the Continuing Airworthiness EAR revision 2025-09-02, and the TIP/MAG editions linked above. Consolidation dates identify the source baselines; they are not a cut-off for later amendments. The EASA initial-airworthiness index provides subsequent regulatory changes.

This page closes the design-to-service lifecycle series: the release document carries evidence forward, while the installer still checks the intended aircraft and certifies the installation.