Aircraft Parts Certification Explained: FAA 8130-3, EASA Form 1 and Traceability

Need a part right now? Submit an RFQ on Aviatrading and reach verified sellers worldwide.

Quick summary

• FAA Form 8130-3 and EASA Form 1 are airworthiness release documents. They state who approved a part, under what authority, and in what condition it was released.
• A certificate is not a guarantee of quality — it is a traceable statement of accountability. The value is in who signed it and whether that organisation can be verified.
• Traceability answers a different question: where did this part come from and what happened to it since manufacture.
• Life-limited parts require back-to-birth records. Without them, the part is scrap regardless of physical condition.
• Documents can be forged. Verification of the issuing organisation is not optional — the AOG Technics case put counterfeit components into more than 180 engines.

Why certification decides the transaction

In most industries paperwork follows the deal. In aviation it is the deal. A component without an acceptable airworthiness release cannot be installed on a certified aircraft, no matter how new it looks or how attractive the price is.

This matters commercially, not just legally. A buyer evaluating two identical part numbers will take the one with clean documentation at a higher price every time, because the alternative is a component that cannot enter their inventory system. For sellers, incomplete paperwork is the single most common reason a quote goes unanswered.

FAA Form 8130-3: what it actually says

The FAA Authorized Release Certificate, Form 8130-3, is often called an airworthiness tag. It serves two distinct purposes depending on which block is completed, and confusing them is a common and expensive mistake.

New parts: the conformity block

When a newly produced article is released, the certifying statement appears in the Block 13 series. It certifies that the item was manufactured in conformity with approved design data and is in a condition for safe operation. This is a production approval statement, issued under 14 CFR Part 21 by the holder of a Production Certificate, PMA or TSO authorisation.

Used parts: the return-to-service block

When a part has been maintained, the certifying statement appears in the Block 14 series — approval for return to service under 14 CFR Part 43. This is issued by a repair station operating under 14 CFR Part 145 or by other appropriately rated personnel.

A tag with only the conformity block completed tells you nothing about maintenance history. A tag with only the return-to-service block tells you nothing about original production. Read which block is signed before reading anything else.

Block 11 and Block 12

Block 11 (Status / Work) declares the condition: NEW, OVERHAULED, REPAIRED, INSPECTED/TESTED, MODIFIED. This is the field that should match the condition code in the listing. A discrepancy between advertised condition and Block 11 is an immediate red flag.

Block 12 (Remarks) is where the substance usually hides: reference to the maintenance manual and revision used, life-limited part status, cycles and hours since new or since overhaul, incoming condition, and any deviation. Experienced buyers read Block 12 first. If it is blank on an overhauled rotable, ask why.

EASA Form 1 and its equivalents

EASA Form 1 performs the same function within the European system, issued by organisations approved under Part 21 (production) or Part 145 (maintenance). The layout mirrors 8130-3 closely, which is deliberate: the two authorities harmonised the format to support mutual acceptance.

Equivalents exist in other jurisdictions and appear regularly in international transactions:

• TCCA Form One — Transport Canada
• CAAC AAC-038 — China
• ANAC Form F-100-01 — Brazil
• UK CAA Form 1 — issued separately since the UK left the EASA system

Acceptance is governed by bilateral agreements between authorities, not by the document itself. A form valid in one jurisdiction is not automatically valid in another.

Dual release

A dual-release tag carries both FAA and EASA approval statements, issued by an organisation holding both certifications under the relevant bilateral safety agreement. For operators with mixed-registry fleets, or for sellers wanting the widest possible buyer pool, dual release materially increases the marketability of a component. It is worth asking for explicitly.

Certificate of Conformance and what it is not

A Certificate of Conformance (CoC) is a manufacturer or supplier statement that goods meet a purchase order specification. It is a commercial document, not an airworthiness release. For standard hardware, raw material or consumables it is often exactly what is required. For a rotable or an installable component on a certified aircraft, a CoC alone is insufficient.

Sellers who present a CoC where an 8130-3 is expected are not necessarily acting in bad faith — but the buyer will treat the listing as undocumented. Be explicit about which document exists.

Traceability: the second half of the answer

Certification says a part was approved. Traceability says where it has been. The two are independent, and a part can have one without the other.

A complete traceability package typically includes:

• The original airworthiness release from manufacture
• Purchase and transfer records showing chain of custody
• Removal documentation stating which aircraft or engine the part came off, and why
• Shop visit reports and teardown inspection reports
• Logbook extracts for time-controlled components

Back-to-birth records

For life-limited parts — engine discs, shafts, spools, certain structural components — the operator must be able to demonstrate the full cycle history from manufacture. Back-to-birth traceability is not a preference; without it the part cannot be returned to service on a certified aircraft.

This is where most surplus engine material fails commercially. The hardware is serviceable, the tag is genuine, and the cycle history is incomplete. If you sell engine material, establish the completeness of back-to-birth records before you list, not after you receive an RFQ.

Condition codes and the documentation each requires

• NE / New — 8130-3 or EASA Form 1 with the conformity block completed
• NS / New Surplus — original release plus chain of custody; shelf-life items need cure or expiry dates
• OH / Overhauled — return-to-service tag from an approved repair station, plus shop report
• RP / Repaired — return-to-service tag stating the work performed
• IN / Inspected-Tested — tag confirming inspection against the applicable manual
• SV / Serviceable — valid release; verify what work supports the status
• AR / As Removed — no airworthiness release; removal documentation and trace are what carry the value

Listing an as-removed part is entirely legitimate. Listing it as serviceable without a release is not, and it is the fastest way to lose a buyer permanently.

OEM, PMA and USM: different paperwork, same question

OEM parts are produced under the type certificate holder’s design approval. Documentation is usually the least contested, and lessors and some maintenance programmes specify OEM exclusively.

PMA parts are produced under a Parts Manufacturer Approval issued under 14 CFR Part 21 Subpart K, based either on identicality to the approved design or on independent test and computation. A PMA part is legally approved. Whether it is contractually acceptable is a separate question — lease agreements frequently restrict PMA on critical components, and that restriction, not airworthiness, is what usually blocks the sale.

Used serviceable material carries the documentation of its last approved maintenance event plus its trace. USM typically delivers 30–50% savings per component against new, and higher on engine material, which is why documentation quality determines its price more than physical condition does.

Unapproved parts: why verification is not paranoia

Roughly 2% of the global aviation parts supply is estimated to consist of unapproved or counterfeit components — on the order of 520,000 items a year. Regulators treat this as a systemic risk rather than isolated incidents, and both the FAA Suspected Unapproved Parts programme and its EASA counterpart exist specifically to collect and act on reports.

The AOG Technics case demonstrated how this works in practice. Between 2019 and 2023 the London-based distributor supplied components for the CFM56 — the most widely operated commercial jet engine — accompanied by forged EASA Form 1 and FAA 8130-3 certificates. More than 180 engines were subsequently identified as containing suspect parts, and operators including United, Southwest, Ryanair and Virgin Australia had to ground aircraft to remove them. The UK Serious Fraud Office and Civil Aviation Authority investigated jointly; the company’s director pleaded guilty to fraudulent trading at Southwark Crown Court on 1 December 2025.

The lesson is not that documents are worthless. It is that a document is only as good as the organisation behind it, and that verifying the issuer is a separate step from reading the tag.

How to avoid unapproved parts: a working checklist

• Verify the issuing organisation. Confirm the repair station or production approval holder exists and holds the rating claimed. Certificate numbers can be checked against authority databases.
• Match the tag to the part. Part number, serial number and description on the document must match the hardware exactly. Transposed digits and generic descriptions are warning signs.
• Read Block 12. Absent, vague or copied remarks on a high-value rotable warrant a direct question.
• Check the chain. A part with a genuine original tag but no record of how it reached the current seller is only partially documented.
• Treat abnormal pricing as data. A price far below market on a controlled component is a signal about documentation, not a bargain.
• Buy through verified channels. Marketplaces that verify seller identity and certification status remove the most common failure mode before it reaches you.
• Report suspicion. The FAA, EASA and UK CAA all operate reporting routes for suspected unapproved parts.

What this means for sellers

Every hour spent assembling documentation before listing is recovered several times over in RFQ conversion. Practical rules:

• Scan and attach the release document to the listing itself, not on request
• State the condition code and ensure it matches Block 11
• Declare gaps openly — buyers will price a known gap and walk away from a discovered one
• For engine material, confirm back-to-birth completeness before listing
• Request dual release where your repair partner can provide it

What this means for buyers

Ask for the documentation package before negotiating price, not after. Confirm which block is signed, whether the issuing organisation is verifiable, whether the condition code matches, and whether trace covers the full life of the part for anything life-limited. A supplier who answers those four questions quickly is a supplier worth building a relationship with.

Source aircraft parts with documentation you can verify

AviaSpares connects buyers with verified sellers across airlines, MROs, distributors and operators worldwide. Certification and traceability are part of the listing, not an afterthought — send an RFQ and get quotes with documentation attached.