# Aircraft Part Traceability Checklist for MRO Shops > Source: https://netray.co/tools/aircraft-part-traceability-checklist > Publisher: Netray (netray.co), AI and integration engineering for ERP and manufacturing systems. > Section: Free Tools ## Short answer A 28-point checklist covering receiving, documentation, serial and batch control, life-limited parts and installation records for aircraft parts in an MRO. ## Category aerospace-defense ## Industry Aerospace MRO ## Audience - MRO quality manager - Stores and receiving inspector - Records clerk - Airworthiness manager ## Tool **Kind:** checklist **Scoring Note:** Tick each item you can prove with a record, not one you believe is true. Critical items are marked: a single miss on a critical item means the part should stay in quarantine until the gap is closed. Export the list and attach it to your internal audit or receiving file. **Groups:** #### Receiving and incoming inspection **Items:** **Text:** Every incoming part is checked against the purchase order for part number, quantity and condition before it leaves the receiving area **Critical:** true **Text:** An authorized release certificate (FAA 8130-3, EASA Form 1, or an accepted equivalent) is present for every part that needs one **Critical:** true **Text:** Part number, serial or batch number and description on the tag match the physical part and the order **Critical:** true **Text:** The release certificate has a legible signature, approval number, date and an accepted status such as new, overhauled, repaired or inspected **Critical:** true Parts with a manufacturer certificate of conformity are matched to a supplier on the approved supplier list Packaging, preservation and shelf-life markings are inspected and recorded at receipt **Text:** Parts without acceptable paperwork go straight to a tagged quarantine location, never to stock **Critical:** true Receiving records are kept with the batch or serial number so the receipt can be found from the part later #### Documentation and back-to-birth records **Items:** **Text:** For life-limited and rotable parts, the build history back to the original manufacturer is on file or traceable on request **Critical:** true **Text:** Gaps in the documentation chain are identified and either closed or the part is rejected **Critical:** true **Text:** Records show cycles, hours or landings since new and since overhaul where the part has a life limit **Critical:** true Airworthiness directive and service bulletin compliance status travels with the part record Teardown or shop findings reports are linked to the component record Dual or reissued release certificates are cross-referenced to the original certificate number Records are retained for the period required by your approval and your customer contracts, and are retrievable by serial number #### Identification, storage and issue **Items:** **Text:** Serviceable, unserviceable, quarantine and scrap stock are held in physically separate, labelled locations **Critical:** true Each stock record carries part number, serial or batch number, location and certificate reference Shelf-life items are tracked by expiry date and issued first-expired-first-out Parts issued to a work order are recorded against the work order, aircraft registration and technician Unused parts returned from the floor go through a re-inspection before being restocked Standard hardware lots keep their batch certification and are not mixed between lots #### Installation, removal and release **Items:** **Text:** Part number and serial number installed and removed are recorded on the task card and in the aircraft records **Critical:** true **Text:** The installed part is checked for eligibility against the aircraft type and configuration before fit **Critical:** true Removed parts are tagged with reason for removal, hours and cycles, and are tracked to the repair vendor and back The certificate of release to service references the parts installed or the work package where they are listed **Text:** Suspected unapproved parts are reported and quarantined using a defined procedure **Critical:** true You can produce the full trace for any one serial number, receipt to installation, within one working day Your internal audit samples traceability on a schedule and records findings and closure ## Content **Intro:** Traceability is the difference between a part you can release and a part you cannot. This checklist walks an aircraft MRO through receiving, documentation, storage and installation so every serial or batch can be followed from the manufacturer to the aircraft it flies on. **Sections:** #### How to use the checklist **Body:** Run it as an internal audit, not a memory test. Pick three recent parts, one rotable with a serial number, one life-limited part and one batch-controlled consumable, and walk each of them through every group. Tick an item only if you can show the record. Where the answer is no or not sure, write the gap down with an owner and a date. Repeat the sample each quarter so you cover different suppliers, different technicians and different part families. Export the list to PDF or Excel and keep it with your quality records so you can show an authority or customer auditor how you test your own system. #### What traceability means in an MRO **Body:** Traceability for aircraft parts means you can link a part on an aircraft to its source, its release documentation and its history, and in reverse, link a suspect part to every aircraft it was fitted to. Authorities and customers expect part number, serial or batch number, status and certifying organization to be known at every stage. For life-limited parts that extends to hours, cycles and landings since new. Different regulators and operators set different retention and documentation rules, so use this list as a baseline and add your own approval and contract requirements. **Bullets:** - Forward trace: from supplier to every work order that used the part - Backward trace: from an installed serial number to its certificate and history - Status trace: new, overhauled, repaired, inspected or modified, with who certified it - Quarantine trace: where a suspect part went and who released or scrapped it #### Reading your result **Body:** Count the ticks per group. Any unticked critical item is a stop condition for the part involved, and a repeated miss across parts points to a process gap rather than a one-off. Below roughly four in five items overall, expect an authority or customer audit to find something. Look at where the misses cluster. Misses in receiving usually mean stores staff lack a clear rule on acceptable paperwork. Misses in installation records usually mean task cards do not force the technician to write a serial number. Fix the process, then re-sample. #### Common mistakes **Body:** The most common mistake is accepting a certificate that looks complete but belongs to a different serial number or a different quantity than the part in your hand. Another is treating the ERP stock record as proof: the system only shows what someone typed. Shops also lose traceability when parts are repacked, split from kits or returned unused from the floor without re-inspection. Finally, many shops cannot produce a trace quickly because records sit in paper files, shared drives and the ERP at the same time. Pick one system of record for the link between serial number, certificate and work order. **Cta:** If your serial numbers, certificates and work orders live in separate places, we can help you connect them inside your ERP so a full trace takes minutes. Netray builds private, on-prem tooling for aerospace shops. **Faq:** #### Is this checklist a regulatory requirement? **Answer:** No. It is a practical self-audit list built around common expectations for aircraft parts documentation. Your obligations come from your approval, such as Part 145 or an equivalent, your quality manual and your customer contracts. Use the list to test that system, and add your own requirements. #### What does back-to-birth traceability mean? **Answer:** It means a part's history can be followed from the current holder back to the original manufacturer without unexplained gaps. It matters most for life-limited and critical rotable parts, where hours, cycles and past repairs affect whether the part is still eligible for installation. #### Can I accept a part with a missing certificate? **Answer:** Not as serviceable stock. A part without acceptable release documentation should be tagged and quarantined until the paperwork is corrected by the issuing organization or the part is inspected and certified by an approved organization, depending on your procedures and the applicable rules. #### How often should I audit traceability? **Answer:** Many shops sample monthly or quarterly as part of the internal audit plan, with extra sampling after a supplier change, a system migration or a finding. Choose a rhythm that covers every part family and supplier type in a year, and record the sample and the result. ## Search terms aircraft part traceability checklist, back to birth traceability aviation, mro parts traceability, aircraft parts documentation checklist, suspected unapproved parts checklist, life limited parts traceability, part 145 stores receiving checklist, aviation parts traceability audit --- Talk to an engineer: https://netray.co/contact?intent=erp_ai | Machine catalog: https://netray.co/agent/catalog.json