Aircraft-part documents: CoC, FAA 8130-3 and EASA Form 1
https://fly-supply.net/en/guides/aircraft-part-documents

Your enquiry checklist
[ ] Exact item and required condition
[ ] Required release/traceability documents
[ ] P/N, S/N or batch matching
[ ] Issuer, date and relevant remarks
[ ] Referenced attachments and records
[ ] Receiving-organisation acceptance confirmed

Use this guide to prepare a request. Exact suitability, installation eligibility, applicable documentation and service scope are confirmed for the specific equipment and application.