Legal & Security Compliance Governance. Operated by YBS Security Limited (trading as AeroParts Network), registered in England & Wales under Company Number 16652382, Registered Office: 5 Parkfield Place, Cardiff, Wales, CF14 3AR.

Official Letterhead & Documents

Master Terms of Service & Commercial Platform Agreement

Version 2.1 — ActiveEffective Date 03/10/2026Governing Entity YBS Security Limited (trading as AeroParts Network, Co. No. 16652382)

These Master Terms of Service ("Agreement") constitute a legally binding commercial agreement between YBS Security Limited (trading as AeroParts Network, "we", "us", or "AeroParts Network") and your organisation ("Customer", "Buyer", or "Supplier") governing access to and use of the AeroParts Network aviation procurement platform, APIs, and rotable inventory matching services.

1Commercial Roles, Eligibility & Platform Status

AeroParts Network is strictly a Business-to-Business (B2B) aerospace software platform and rotable component exchange. Access is restricted exclusively to verified commercial airlines, air operators, Continuing Airworthiness Management Organisations (CAMO), UK CAA / EASA / FAA Part-145 approved maintenance organisations, and authorized aircraft teardown and component stockists.

By registering an account or initiating a component requisition, Customer represents and warrants that it is a duly incorporated commercial entity with full legal authority to enter into commercial aerospace transactions.

2Aerospace Regulatory Status & Mandatory Fitment Disclaimer

CRITICAL AIRWORTHINESS GOVERNANCE NOTICE: AeroParts Network is an aerospace software technology and digital matching service. AeroParts Network is NOT an approved Continuing Airworthiness Management Organisation (CAMO) under UK Reg (EU) No 1321/2014 Part-CAMO / Part-M, is NOT a Part-145 Maintenance Organisation, and does NOT hold delegated airworthiness regulatory authority from the UK Civil Aviation Authority (CAA), EASA, or the FAA.

Any routing scores generated by the Aero Liquidity Decision Engine (ALDE), condition indicators, pricing analytics, or IPC Code-2 Two-Way Interchangeability suggestions presented on the platform are advisory decision-support signals only.

MANDATORY HUMAN-IN-THE-LOOP VERIFICATION: Under applicable international airworthiness regulations (including UK CAA CAP 553, EASA Part-M/Part-145, and FAA 14 CFR Part 43/145), the Buyer, installing organisation, and authorised Part-66 / Part-145 certifying engineer retain sole, absolute, and non-delegable legal responsibility for:

  • Physically inspecting all received components, data plates, serial numbers, and physical condition before aircraft installation;
  • Verifying that the accompanying Authorised Release Certificate (UK CAA Form 1, EASA Form 1, or FAA 8130-3) is authentic, valid, and appropriately dual-release certified where required;
  • Confirming total time in service (TSN), total flight cycles (CSN), and complete historical back-to-birth documentation for all Life-Limited Parts (LLP);
  • Validating applicable Airworthiness Directives (AD), Service Bulletins (SB), and Aircraft Maintenance Programme (AMP) effectivity for the specific aircraft tail registration.

3Zero-Tolerance Policy on Suspected Unapproved Parts (SUP)

Customer and Supplier mutually agree to uphold the highest standards of aviation safety and zero tolerance for Suspected Unapproved Parts (SUP) pursuant to UK CAA CAP 562 Leaflet 11-24 and FAA Advisory Circular AC 21-29.

Suppliers warrant that all listed rotables, avionics, and structural components originate from lawful, traceable aviation sources, have never been subjected to severe stress or heat outside normal operating limits (certified by a Non-Incident Statement / NIS), and are accompanied by genuine, unadulterated release certificates. Any attempt to upload forged certificates, counterfeit parts, or scraped/salvaged military material without civilian certification will result in immediate permanent account termination, escrow forfeiture, and formal reporting to the UK Civil Aviation Authority and FAA Office of Safety and Security.

4Listings, 0% Listing Fee & Pre-Staged Escrow Settlement

0% Listing Fee for Stockists: Verified UK and European Part-145 teardown stockists pay 0% upfront fees to list certified rotable components. AeroParts Network generates revenue through enterprise subscription tiers and buyer transaction processing fees agreed upon pilot enrollment.

Pre-Staged Escrow Protocol: To protect buyers and suppliers in high-value rotable exchanges, all agreed purchase orders are routed through our pre-staged escrow mechanism:

  • Funds Staging: Buyer locks transaction funds prior to component dispatch by the supplier.
  • Inspection Window: Buyer has 48 hours from physical courier delivery at the destination maintenance base or airport apron to physically inspect the component, verify serial numbers, and inspect accompanying Form 1 airworthiness documents.
  • Release & Settlement: If conforming, escrow funds are automatically disbursed to the supplier. If rejected with cause (e.g. document mismatch, shipping damage, non-conforming part), funds remain held while return logistics are executed, followed by prompt refund.

5Export Control, Sanctions & Anti-Bribery Compliance

Customer and Supplier warrant strict compliance with all applicable export control regimes, including the UK Export Control Act 2002, the UK Strategic Export Control Lists administered by the Export Control Joint Unit (ECJU), the EU Dual-Use Regulation (EU) 2021/821, and US International Traffic in Arms Regulations (ITAR, 22 CFR 120-130) and Export Administration Regulations (EAR, 15 CFR 730-774).

Both parties warrant that neither they, nor their parent entities, subsidiaries, directors, or beneficial owners, appear on the UK Consolidated Sanctions List, the US Office of Foreign Assets Control (OFAC) Specially Designated Nationals (SDN) List, or the EU Consolidated Financial Sanctions List. Both parties agree to abide strictly by the UK Bribery Act 2010.

6Total Exclusion of Aircraft on Ground (AOG) and Consequential Damages

EXPRESS EXCLUSION OF AOG LOSSES: To the maximum extent permitted by applicable law, in no event shall YBS Security Limited (trading as AeroParts Network), its directors, employees, or contractors be liable to Customer, Supplier, or any third party for any Aircraft on Ground (AOG) downtime losses, flight cancellation penalties, passenger accommodation expenses, airport stand/parking charges, lost charter contracts, loss of operating profit, or loss of aircraft asset valuation, whether arising in contract, tort (including negligence), breach of statutory duty, or otherwise.

Aggregate Financial Cap: To the extent permitted by law, AeroParts Network's total aggregate liability arising out of or in connection with this Agreement or the use of the platform shall not exceed the total platform fees actually paid by Customer to AeroParts Network in connection with the specific transaction giving rise to the claim in the twelve (12) months preceding the event.

7Governing Law & Jurisdiction

This Agreement, its interpretation, and any dispute or claim arising out of or in connection with it or its subject matter shall be governed by and construed in accordance with the laws of England and Wales. The courts of England and Wales shall have exclusive jurisdiction to settle any dispute.

Aviation Regulatory & Airworthiness Compliance Charter

Standard UK CAA CAP 553 / CAP 562 · EASA Part-145 · FAA Part 43Classification Aerospace Regulatory Governance

This charter sets forth the airworthiness release, traceability, and documentation verification standards required of all aircraft components traded or evaluated on AeroParts Network.

1Authorised Release Certificates (CAA Form 1 / EASA Form 1 / FAA 8130-3)

Every serviceable, overhauled, inspected, or modified rotable component listed on AeroParts Network must be accompanied by a genuine Authorised Release Certificate issued by an appropriately approved maintenance organisation:

  • UK CAA Form 1: Issued by a maintenance organisation approved under UK Part-145 (UK Reg (EU) No 1321/2014);
  • EASA Form 1: Issued by an EASA Part-145 approved maintenance organisation, eligible for UK CAA recognition under the UK-EU Trade and Cooperation Agreement (TCA) Annex on Aviation Safety;
  • FAA Form 8130-3: Issued by an FAA 14 CFR Part 145 repair station, carrying appropriate dual-release statements where required for European and UK operations under the UK-US Bilateral Aviation Safety Agreement (BASA) and Maintenance Implementation Procedures (MIP).

2Block 14 Certifying Staff Signature Masking & Data Protection

Block 14 of an Authorised Release Certificate contains the personal signature, printed name, and individual certification authorization number of the certifying engineer. Under UK GDPR Article 5(1)(c) (Data Minimisation) and aerospace security protocols:

  • Public Catalog Views: Raw signatures are programmatically masked. Public listings show only verified Part-145 organisation approval numbers (e.g. UK.145.00394), certificate reference numbers, and condition states;
  • Authenticated Escrow Release: Full, unmasked certificate PDFs are accessible solely to authenticated buyers who have placed components under reservation or completed escrow staging for airworthiness record retention under UK Part-145.A.55.

3Life-Limited Parts (LLP) & Back-to-Birth (BtB) Traceability

For engine disks, landing gear shock struts, turbine rotors, and other Life-Limited Parts (LLP), suppliers must provide complete Back-to-Birth (BtB) trace documentation:

  • Certified statement of Total Time Since New (TSN) and Total Cycles Since New (CSN);
  • Full historical trail of every previous operator, installation tail number, and removal record;
  • Non-Incident Statement (NIS) confirming the component was not subjected to extreme heat, stress, immersion, or aircraft accident conditions;
  • ATA 106 Material Certification signed by the authorized quality manager.

4IPC Code-2 Two-Way Interchangeability (FFF)

AeroParts Network incorporates aircraft manufacturer Illustrated Parts Catalog (IPC) interchangeability rules:

Code 2 (Two-Way Interchangeable): Confirms Form, Fit, and Function (FFF) equivalency under ATA iSpec 2200. Alternate part numbers designated as Code-2 share identical aerodynamic envelopes, mounting lugs, electrical interfaces, and structural load ratings. However, operator CAMO pre-approval remains mandatory prior to installation to confirm specific aircraft modification status and Service Bulletin (SB) incorporation.

Privacy Notice (UK GDPR & PECR)

Version 2.1 — ActiveLast updated 03/10/2026Controller YBS Security Limited (t/a AeroParts Network, Co. No. 16652382)

This notice explains what personal data YBS Security Limited (trading as AeroParts Network) collects when you visit this website, interact with our B2B aviation liquidity correspondence, or use the AeroParts Network workspace, why we collect it, and what rights you have under the UK GDPR and the Data Protection Act 2018.

1Who we are

YBS Security Limited (Company No. 16652382, trading as AeroParts Network) operates AeroParts Network, a B2B aviation software platform that helps UK and European CAA/EASA Part-145 maintenance organisations, teardown facilities, and operators source rotable components and verify airworthiness release documentation.

Legal entity & trading nameYBS Security Limited (trading as AeroParts Network)
Registered jurisdictionEngland and Wales (UK Companies House)
Company registration number16652382 (Incorporated 15 August 2025)
Registered office address5 Parkfield Place, Cardiff, Wales, CF14 3AR
Operations & correspondence address20 Ardwyn, Whitchurch, Cardiff, Wales, CF14 7HF
Data protection leadDev Kumar, Director (founder@aeropartsnetwork.com)
Supervisory authorityUK Information Commissioner's Office (ICO — ico.org.uk, Tier 1 Micro-Organisation)

Given our scale as a B2B software provider processing corporate aviation contact data and statutory airworthiness records, a formal statutory Data Protection Officer is not required under Article 37 of the UK GDPR. All data protection enquiries are handled directly by our Data Protection Lead at founder@aeropartsnetwork.com.

2When we are the controller, and when we are not

We act as the Data Controller for personal data relating to website visitors, corporate B2B prospects verified via public UK Companies House records, and individual users who hold accounts on the platform. We act as a Data Processor for personal data that a customer or supplier organisation uploads to the platform, including the names, signatures, and Part-145 authorisation stamp references of certifying engineers appearing in Block 14 of uploaded UK CAA Form 1, EASA Form 1, or FAA 8130-3 release certificates.

3What we collect

When you visit this website

Nothing that identifies you personally by default. This site sets no third-party advertising cookies or cross-site tracking pixels. Our hosting infrastructure maintains standard encrypted server logs (IP address, request timestamp, user agent) for 90 days strictly for security and fault diagnosis.

When you contact us or engage in B2B aviation outreach

Your name, corporate email address, job role, company name, UK Companies House registration details, and correspondence history. Under PECR Regulation 22 (Corporate Subscribers) and UK GDPR Article 6(1)(f) (Legitimate Interests), we only initiate B2B outreach to corporate email domains (@company.co.uk / @company.com) of registered corporate aviation entities, and every communication includes an immediate one-click or reply opt-out.

When you use the platform

  • Account data — name, corporate email, organisation, role, permissions, and authentication records.
  • Activity records — component requisitions viewed, IPC Code-2 alternates matched, escrow reservations staged, and audit timestamps.
  • Airworthiness release certificates (CAA Form 1 / EASA Form 1 / FAA 8130-3) — Block 14 of an Authorised Release Certificate contains the name, signature, and UK.145 / EASA.145 authorisation reference of the certifying engineer. Public marketplace views mask raw signatures and display only the verified approval badge; unredacted certificate PDFs are restricted to authenticated CAMO and Part-145 buyers for mandatory airworthiness traceability under UK Reg (EU) No 1321/2014.

We do not collect or process special category data as defined in Article 9 of the UK GDPR, and the platform must not be used to upload such data.

4Why we process it, and our lawful basis

PurposeLawful basisNote
Replying to your enquiryLegitimate interests — Art. 6(1)(f)Responding to aviation buyers, MROs, or suppliers who contact us regarding component sourcing or pilot onboarding.
Providing the AeroParts Network workspaceContract — Art. 6(1)(b)Performing our agreement with your airline, CAMO, or Part-145 maintenance organisation.
UK CAA Form 1 / EASA Form 1 / FAA 8130-3 traceabilityLegal obligation & Legitimate interests — Art. 6(1)(c) & 6(1)(f)Verifying Block 14 certifying staff stamps and maintaining airworthiness release traceability in alignment with UK Reg (EU) No 1321/2014 (Part-145 / Part-M).
B2B corporate outreach (PECR Reg. 22)Legitimate interests — Art. 6(1)(f) & PECR Reg. 22Contacting corporate email addresses (@company.co.uk / @company.com) of active UK Companies House aviation entities regarding surplus rotable liquidity, with instant opt-out in every message.
Security, escrow integrity & fraud preventionLegitimate interests — Art. 6(1)(f)Protecting airworthiness records, preventing counterfeit/unapproved parts (SUP), and securing platform accounts.
Product updates to pilot participantsLegitimate interests (PECR soft opt-in)Operational updates to active pilot organisations with one-click unsubscribe in every communication.
Statutory accounting & corporate recordsLegal obligation — Art. 6(1)(c)Compliance with the UK Companies Act 2006 and HMRC record-keeping requirements.

Where we rely on legitimate interests under Article 6(1)(f) of the UK GDPR, we have completed a Legitimate Interests Assessment (LIA) balancing operational aviation traceability and B2B liquidity discovery against individual privacy rights. You may request details of this assessment or object to processing at any time by emailing founder@aeropartsnetwork.com.

5Who we share it with

We do not sell personal data, share it with advertising networks, or disclose one customer's private requisitions to another customer. We use vetted infrastructure and B2B workflow sub-processors listed in Annex 3.

We may disclose records where legally required, for example to the UK Civil Aviation Authority (CAA), HMRC, a court, or a statutory regulator acting within its powers.

6Where your data is held

Platform data is hosted in the United Kingdom and European Economic Area (London / EU cloud regions). Where any sub-processor processes data outside the UK/EEA, we rely on the UK International Data Transfer Agreement (IDTA) or UK Addendum to the EU Standard Contractual Clauses.

7How long we keep it

Security and server diagnostic logs90 days
B2B enquiries and corporate outreach records24 months from last interaction (or immediate suppression upon opt-out)
Platform account and organisation user dataDuration of the pilot or customer agreement, plus 12 months
Airworthiness release audit trail (CAA Form 1 / EASA Form 1)Minimum 6 years (aligned with the Limitation Act 1980 and UK CAA Part-145 continuing airworthiness retention rules)
Statutory accounting and escrow settlement records6 years after the end of the relevant financial year

8Automated decision-making

AeroParts Network ranks and routes candidate aircraft components using deterministic scoring (Aero Liquidity Decision Engine and IPC Code-2 interchangeability graphs) applied to aircraft parts and corporate facilities, not individuals. No decision producing legal or similarly significant effects concerning an individual is taken solely by automated means under Article 22 of the UK GDPR. Final technical acceptance of any aircraft component always remains with a human CAMO or Part-145 certifying engineer.

9Your rights

Under the UK GDPR you have the right to be informed; obtain a copy of your personal data; have inaccurate data rectified; request erasure; restrict processing; data portability; object to processing based on legitimate interests or B2B direct marketing; and withdraw consent where consent is the lawful basis.

To exercise any of these rights or add your corporate domain to our permanent suppression list, email founder@aeropartsnetwork.com. We respond to all requests within 30 days.

10Complaints

Please raise any concern with us first at founder@aeropartsnetwork.com. You also have the right to complain to the Information Commissioner's Office (ICO) at any time.

Information Commissioner's OfficeWycliffe House, Water Lane, Wilmslow, Cheshire SK9 5AF · Helpline: 0303 123 1113 · ico.org.uk

Data Processing Agreement (UK GDPR Art. 28)

Version 2.1 — ActiveForms part of the Master Services Agreement

This Data Processing Agreement governs personal data that YBS Security Limited (trading as AeroParts Network, Company No. 16652382) processes on your instruction when your organisation uses AeroParts Network, in accordance with Article 28 of the UK GDPR.

1Definitions & Roles

Controller, Processor, Data Subject, Personal Data, Processing, and Personal Data Breach have the meanings given in the UK GDPR. Customer Personal Data means Personal Data that we process on your behalf under the Customer Agreement (including Block 14 certifying staff records on uploaded airworthiness certificates). Customer is the Controller; YBS Security Limited is the Processor.

2Processing on Documented Instructions

We process Customer Personal Data only on your documented instructions, including as to transfers, unless required to do otherwise by UK law. The Customer Agreement, this DPA, and your configuration of the workspace constitute your documented instructions.

3Security & Confidentiality

We implement technical and organisational measures appropriate to the risk in accordance with Article 32 of the UK GDPR, including public masking of Block 14 signatures on marketplace listings and TLS 1.3/AES-256 encryption, as detailed in Annex 2.

4Breach Notification

We will notify you without undue delay, and in any event within 48 hours of becoming aware of any Personal Data Breach affecting Customer Personal Data.

A1Annex 1 - Description of Processing

Subject matterProvision of the AeroParts Network platform for component sourcing, IPC Code-2 interchangeability matching, and airworthiness documentation verification.
DurationThe term of the Pilot or Customer Agreement, plus the statutory retention periods in clause 9.
Nature and purposeHosting, storage, indexing, computer-vision field extraction, public signature masking, retrieval, and audit logging of component airworthiness records for authorised CAMO and Part-145 personnel.
Types of Personal DataNames, corporate email addresses, job titles, and UK Companies House director records; authentication and audit logs; certifying staff names, signatures, and UK.145 / EASA.145 authorisation stamp numbers appearing in Block 14 of uploaded release certificates.
Categories of Data SubjectAuthorised employees and contractors of customer/supplier organisations; certifying engineers named in Block 14 of uploaded CAA Form 1 / EASA Form 1 / FAA 8130-3 certificates; corporate contacts at UK/EU aviation organisations.
Special category dataNone. The platform does not process Article 9 special category data and such data must not be uploaded.

A2Annex 2 - Technical and Organisational Security Measures

MeasureStatusDetail
Encryption in transitIn placeTLS 1.3 enforced across all web, API, and SMTP connections.
Encryption at restIn placeAES-256 encryption at the database and object storage layer.
Block 14 signature maskingIn placePublic catalog listings display only verified Part-145 approval badges; raw Form 1 PDFs containing certifying staff signatures are restricted to authenticated buyers.
Tenant & role isolationIn placeRow-level security and role-based access control separating supplier and buyer workspaces.
Immutable audit loggingIn placeAll Form 1 verification checks, IPC Code-2 matches, and escrow events are timestamped and logged.
Automated backupsIn placeDaily encrypted backups with point-in-time recovery.
Multi-factor authentication (MFA)SupportedSupported for administrative and workspace accounts.
PECR & GDPR suppression listIn placeAutomated Do-Not-Contact suppression enforced across Attio CRM and outreach scripts.
Staff data protection governanceIn placeMandatory UK GDPR, PECR, and CAA CAP 553 airworthiness data handling controls for all directors and engineers.

A3Annex 3 - Authorised Sub-processors

Sub-processorPurposeLocation
Supabase, Inc.Application database, authentication, and encrypted Form 1 document storageUnited Kingdom / EU (AWS eu-west-2 London / EU region)
Vercel Inc.Edge application hosting, TLS termination, and content deliveryUnited Kingdom / Global Edge Network (UK London lhr1 node)
IONOS Cloud Ltd.Corporate transactional and B2B outreach email delivery (smtp.ionos.co.uk)United Kingdom & European Union
Attio Ltd.B2B CRM, UK Companies House corporate record management, and opt-out suppression trackingUnited Kingdom (Registered in England & Wales No. 11002979, London)

We will provide 30 days' notice before adding or replacing any sub-processor listed above.

Cookie & Tracking Policy

Status Active & VerifiedAdvertising Trackers Zero (0)

AeroParts Network believes in privacy by default. We do not use third-party advertising cookies, analytics beacons, or behavioral profiling trackers.

1Cookies Used on this Platform

NameCategoryPurposeDuration
sb-*-auth-tokenStrictly NecessaryMaintains authenticated session state for workspace users. Encrypted and signed.Session / 7 days
__Host-next-action / rscStrictly NecessaryNext.js CSRF protection and server action execution integrity.Session
apn_sandbox_modeFunctionalStores user preference for demonstration sandbox vs live inventory mode.30 days
Third-party advertising & tracking cookiesNoneAeroParts Network employs ZERO marketing pixels, social trackers, or cross-site tracking beacons.None

2Managing Cookies

Since all cookies used on AeroParts Network are strictly necessary for platform authentication, CSRF security, and basic user preferences, disabling cookies in your browser settings will prevent you from signing in to the workspace or completing purchase orders.

Security Policy & Coordinated Vulnerability Disclosure

Security Contact security@aeropartsnetwork.comSLA Response 24 Hours

At AeroParts Network, security is at the core of our aviation infrastructure. We safeguard airworthiness records, supplier commercial data, and transactional integrity through layered defense mechanisms.

1Security Architecture Highlights

  • Zero Trust Access: Multi-factor authentication, row-level database security, and isolated tenant schemas;
  • Edge Security Shield: Automated sliding-window rate limiting, origin verification for CSRF mitigation, and strict HTTP security headers (CSP, HSTS, X-Frame-Options);
  • Signature Masking: Certifying staff signatures are cryptographically safeguarded and never exposed to unauthenticated web crawlers;
  • Encrypted Redundancy: All platform databases and document repositories are backed up daily with automated point-in-time recovery.

2Coordinated Vulnerability Disclosure (CVD)

If you believe you have identified a security vulnerability in our platform, please report it promptly to security@aeropartsnetwork.com. We commit to:

  • Acknowledging your report within 24 hours;
  • Providing an initial assessment and mitigation plan within 72 hours;
  • Not pursuing legal action against researchers who adhere to safe harbor principles (avoiding privacy violations, data destruction, and service disruption).

Acceptable Use Policy (AUP)

Enforcement Mandatory for All UsersLegal Authority UK Air Navigation Order 2016 · Fraud Act 2006

This policy governs the permitted conduct of all users, suppliers, and buyers accessing the AeroParts Network website and application services.

1Prohibited Activities

You may not under any circumstances:

  • Upload falsified, forged, or altered Authorised Release Certificates (CAA Form 1 / EASA Form 1 / FAA 8130-3). Submitting fraudulent airworthiness records is a criminal offense under the UK Air Navigation Order 2016 and will be referred immediately to the police and aviation authorities;
  • Attempt to sell Suspected Unapproved Parts (SUP), stolen materials, or scrap rotable assets;
  • Engage in automated scraping, harvesting, or systematic extraction of pricing, inventory, or contact details without written consent;
  • Probe, scan, or test the vulnerability of platform endpoints or attempt to circumvent rate limits or authentication tokens;
  • Introduce viruses, trojans, worms, or other malicious computer code into the platform infrastructure.

Violations will result in immediate permanent account revocation, forfeiture of pending escrow balances, and legal prosecution.

Technical Procurement Protocol

Active Procurement Manifest

Dual-Release UK CAA / FAA Form 1 & 48h Inward Inspection Escrow

Synchronizing procurement manifest...