EASA Form 1 and FAA 8130-3 (Authorized Release Certificates)

The EASA Form 1 is the release document issued by an EASA-approved organization when releasing an aircraft component into service. Two distinct EASA approval contexts produce a Form 1. A Production Organization Approval (POA) under Part-21 Subpart G issues a Form 1 as the Certificate of Conformity confirming that a newly manufactured part conforms to approved design data (the type-certificate basis) and is in a condition for safe operation. A Maintenance Organization Approval under Part-145 issues a Form 1 as the Authorized Release Certificate confirming that a component has been maintained, overhauled, or repaired in accordance with approved maintenance data and is returned to serviceability. The Form 1 structure is defined in EASA Acceptable Means of Compliance (AMC) 145.A.50(c) and the associated form template in the Part-145 appendix. Mandatory fields include: the component description, part number, serial number (for serialised parts), the quantity, the work order or batch reference, the applicable airworthiness directives and service bulletins incorporated (or confirmed not applicable), the overhaul/repair standard reference, the signature and stamp of the certifying staff member, the date of release, and the approval reference number of the issuing organization.

The FAA Form 8130-3 Authorized Release Certificate (also called the Airworthiness Approval Tag) serves the identical function in the FAA system. Under 14 CFR §21.137, a Production Approval Holder (PAH) issues an 8130-3 as the conformity statement for newly manufactured parts. Under FAA Part 145, an authorized Repair Station issues an 8130-3 when returning a component to service following maintenance or overhaul. FAA Designated Airworthiness Representatives (DARs) issue 8130-3s in specific circumstances — notably for used articles that require an export airworthiness approval, and for certain repair station conformity findings. The 8130-3 format is prescribed in FAA Order 8130.21, currently in revision J (2022), which specifies field definitions, block-by-block completion instructions, and the circumstances under which blocks are mandatory versus optional.

The FAA-EASA Bilateral Aviation Safety Agreement (BASA) and its associated Implementation Procedures for Airworthiness (IPA), signed originally in 2011 and revised through Annex 1 updates, establishes mutual recognition between the Form 1 and 8130-3 for specified part categories. Under the IPA, a valid EASA Form 1 issued by a Part-145 organization is accepted by the FAA as equivalent to an 8130-3 for the same component; a valid FAA 8130-3 issued by a Part 145 Repair Station is accepted by EASA. The bilateral recognition is not unconditional: it applies to new production parts and maintained components released by approved organizations for installation on civil aircraft. Used parts with incomplete release documentation, parts removed from accident-damaged aircraft, and parts from unapproved suppliers are not automatically covered by bilateral recognition and require individual assessment.

The legal consequence of an invalid or missing Form 1 / 8130-3 is absolute. Under EASA Part-145 145.A.42, a maintenance organization must only use parts with appropriate documentation — an EASA Form 1 for new and maintained components, a Certificate of Conformity for standard parts. A component installed without a valid Form 1 renders the Certificate of Release to Service (CRS) invalid for that task. Under FAA §43.9 and §43.11, an aircraft returned to service must have all work performed in accordance with approved data, and a component installed without valid release documentation cannot be shown to meet that standard. The receiving inspection function at a maintenance organization is the first gate: parts arriving without a Form 1 / 8130-3, or with discrepancies between the documented P/N or S/N and the physical part, are quarantined on receipt and may not be installed until the discrepancy is resolved or the part is returned to the supplier.

A nuance for operators of EASA-registered aircraft purchasing parts from US suppliers: parts manufactured under an FAA Production Approval Holder and released on an 8130-3 are accepted under the BASA IPA, but the 8130-3 must be the full ten-block form correctly completed, including the airworthiness basis (Block 12 for new parts) or the maintenance work performed (Block 11 for maintained components). Incomplete 8130-3s — which arise when shippers omit blocks under the mistaken belief that unused blocks are optional — are a common receiving-inspection rejection issue.

For flight schools operating EASA-registered training fleets, the Form 1 / 8130-3 flow is a daily logistics function. Every engine overhaul return from the shop, every avionics LRU replacement, every propeller overhaul arrives with a Form 1. The receiving inspector checks the document, logs the P/N and S/N into inventory, and the part is cleared for installation. The practical failure at small and medium ATOs is informal parts procurement: an instructor's recommendation leads to purchasing a used part from an online marketplace or from another operator's surplus stock. The part may physically be serviceable — correct P/N, visually undamaged — but without a Form 1, it cannot be legally installed under Part-145 145.A.42. The cost of that mistake is not just a compliance finding; it is the potential invalidation of a CRS and, by extension, the aircraft's airworthiness.

For combined ATO/AOC operators, parts sourcing controls become especially important because the AOC environment may involve higher-value components where parts traceability scrutiny is more intense. A Part-145 audit of an AOC organization's parts stores is typically more granular than a routine Part-M audit, and the audit sample almost always includes verification of Form 1 documentation against inventory records.

Aviatize's maintenance execution module enforces Form 1 / 8130-3 documentation as a mandatory receiving inspection workflow. When a part is received against a purchase order, the receiving interface requires: capture of the Form 1 or 8130-3 reference (or upload of the scanned document), P/N and S/N verification against the documentation, and determination of serviceability status. A part that fails receiving inspection — document absent, P/N mismatch, S/N mismatch, or condition discrepancy — is placed in a quarantine queue in the inventory system. The quarantine state is enforced: a quarantined part cannot be allocated to a work order, and the system records the quarantine reason and the resolution action taken.

For LLPs and life-controlled rotables, the Form 1 documentation is stored as the foundational back-to-birth chain entry — the release document from the overhaul organization is the single most important link in the traceability chain, and the platform associates it permanently with the component's serial number record. When a CRS is generated for a completed work order, the platform verifies that every serialised part installed during that work order has a Form 1 / 8130-3 attached — the CRS cannot be issued while any installed component lacks its release documentation, eliminating the manual cross-check that certifying staff otherwise must perform from memory.