RFID & RTLS for aircraft MRO: tool control, rotables and ATA Spec 2000
Independent design for maintenance, repair and overhaul: every tool accounted for at shift end (see tool tracking and tool control), rotable and AOG parts traceable from receiving to installation, calibration enforced, and GSE findable across hangar and apron. We choose the technology for each job, integrate it with your MRO system, and supply the cabinets or tags only if you choose, on a separate contract.
We reply within one working day with questions or a written price. No obligation. Fixed-scope engagements from £3k. Prefer to talk? Book a free 30-minute call.
Not ready for a call? ··
How are RFID and RTLS used in aircraft MRO?
MRO shops use passive RFID to prove every tool is back at shift end, to carry part history on serialised and rotable components (in line with ATA Spec 2000 Chapter 9), and to stop out-of-calibration tools from being issued. They add real-time locating (RTLS, usually UWB or BLE) where live position matters: tools and kits beside the aircraft, GSE across the hangar and apron, and technicians and parts during a heavy check. Everything only pays back when the events land in the MRO system you already run.
This page is TRACIO's MRO hub. It sits under our aerospace & MRO practice and focuses on the maintenance organisation: line, base and heavy maintenance, component shops and engine MRO.
Why MRO is its own problem
Maintenance is regulated, labour-heavy and unforgiving. Oliver Wyman's Global Fleet and MRO Market Forecast 2025-2035 (February 2025) puts global commercial MRO spend at about $119.7 billion in 2025, rising to $156.8 billion by 2035: engines $61.2B, airframe $22.8B, components $21.1B and line maintenance $14.6B. Minor gains in turn time or parts availability therefore matter at fleet scale, and a single missing tool can ground an aircraft.
- Accountability is audited. Tool control and FOD prevention sit inside AS9100 quality systems and Part-145-style approvals. A paper tag board is only as good as the last person who checked it.
- Parts carry history. Rotables and life-limited parts need back-to-birth traceability. Manual re-keying at receiving and install is where errors enter.
- Calibration windows slip. Tools rotate between bays and shifts. Without enforcement, out-of-calibration issue is a finding waiting to happen.
- The hangar is RF-hostile. Metal airframes, stands and tool drawers reflect and absorb signal, so technology choice and survey matter more than in an office.
MRO use cases and the technology that fits each
| Use case | What good looks like | Usual technology | Integrate with |
|---|---|---|---|
| Tool control & FOD prevention | Every tool issued to a person and a work order; shift-end count proves 100% return; a missing tool is found before the aircraft moves | Passive RFID in cribs, drawers and kits; UWB in bays where live location is needed | MRO/ERP work order; FOD process |
| Rotable & serialised parts | Part identity and history read from the tag at receiving, kitting and install; no re-keying | Passive (RAIN) RFID tags aligned to ATA Spec 2000 Chapter 9; fixed and handheld readers | Stores, inventory and records in your MRO/M&E system or ERP |
| AOG parts kitting & dispatch | Kits located and picked in minutes with chain of custody | Passive RFID on kit containers and bins; BLE or UWB for pick attribution | Parts inventory and dispatch |
| Calibration tracking | Out-of-calibration tools cannot be issued. Recall lists are generated automatically | RFID at issue/return points plus calibration dates in the tool master | Calibration or EAM system |
| GSE & hangar equipment | Tugs, GPUs, stands and lifts found without a search; utilisation measured | BLE or UWB indoors; GPS hybrid on the apron | EAM / maintenance planning |
| Heavy check (C/D) & HMV flow | Technician, tool and part location feeds planning; bottlenecks visible | UWB or BLE on people and kits (with works-council and privacy design) | Planning and work-card systems |
| Engine overhaul traceability | Every module, part and life-limited part (LLP) is linked to its engine serial number, shop work order and records from strip through inspection and repair to build. Parts sent to outside repair are logged out and back in, and nothing reaches the build without its release paperwork. Your inspectors and certifying staff still make every serviceability decision. | 2D codes or passive RFID on the part tag, tray, basket or transport stand at each shop gate, confirmed in the survey. | Shop work order and records; see WIP and material flow, serialisation and custody, quality and traceability and tool control |
Engine overhaul: parts and modules through the shop
During an engine shop visit, modules and parts are split up, sent to different cells or to outside repair, and brought back together for the build. The risk is a part that loses its link to the engine serial number, its work order or its release paperwork.
What matters: every module and part stays linked to its engine and work order from strip to build, parts sent to outside repair are logged out and back in, and the record lands in your MRO system rather than a separate spreadsheet.
Questions worth asking:
- Does the record follow a part to an outside repair shop and back?
- Does the tag or marking survive cleaning, heat and inspection?
- Who owns the record when a module moves to another engine?
Three questions worth answering, before and after
- How long does it take to find a tool today?
- How many tools are not back at shift end?
- How often is a tool issued past its calibration date?
Talk them through with us on a free 30-minute call.
RFID, UWB or BLE in the hangar?
There is no single radio for MRO. Our default split, which we then test in a site survey:
- Passive RFID where cribs, stores, kits and parts need to scale cheaply. Tags cost cents to a few euros, have no battery, and survive tool and part environments when you choose the right on-metal tag.
- UWB where hangar and line accuracy matter: sub-metre live location of tools, kits and stands around the aircraft.
- BLE for zone-level location of GSE, people and larger kit at lower infrastructure density.
- GPS hybrid for apron-wide GSE outside the hangar.
The expensive mistake is buying site-wide UWB when drawer-level RFID would prove tool return, or buying RFID portals when the real problem is finding a stand in a crowded bay. See choosing a locating technology and the RAIN RFID vs RTLS guide.
Standards and requirements we design to
| Standard / requirement | What it means for your programme |
|---|---|
| ATA Spec 2000 Chapter 9 | Industry standard for part marking and the data carried on RFID tags and barcodes. Airbus has required RFID part marking since the A350 XWB and extended RFID labels to major components across its aircraft (Fujitsu/Airbus announcement, May 2014). Your receiving and stores processes should read that data, not re-key it. |
| AS9100D / AS9110 | Quality-system expectations for control of tools, FOD prevention and traceability. The RFID or RTLS record becomes audit evidence, so data retention and exception handling have to be designed in. |
| Part-145 approvals (EASA / FAA) | Maintenance organisations must use calibrated tools and keep traceable records. Automating issue and return against calibration status reduces findings. |
| MIL-STD-129R / MIL-STD-130N | Marking and item unique identification for defence MRO work. |
| Your MRO system | We specify the integration to your MRO/M&E system, ERP or EAM up front, with acceptance tests, so tool and part events land in the work order. |
How we run an MRO programme
Independent from start to finish. Advice first. We also supply, lease and integrate if you choose. Every stage has a gate you can stop at.
- Discovery & scoping: walk the cribs, stores, bays and apron; baseline tool losses, search time, calibration findings and AOG kitting time; agree the KPI that must move.
- Site survey & RF risk: test reads on real tools, drawers and parts; measure multipath in the hangar before committing to a technology.
- Supplier selection & RFP: an independent shortlist across tool-control cabinets, RFID and UWB platforms, with scripted demos on your tools and your MRO system.
- Pilot with acceptance criteria: one crib, one bay or one component shop, measured under live shift load, not a demo-day average.
- Roll-out, go-live and hypercare: integration testing, training, and a post-go-live data-quality audit so accountability survives staff turnover.
Every engagement is scoped per project and priced in writing before work starts: £3k to £30k per project, or £1,200 a day. Regional ranges for Europe, North America and other regions are on how we work.
Proof from the field
The programmes below come from earlier work by our specialists. Client names are withheld under NDA and figures are as reported at the time. Named references are available under NDA when you engage.
- MRO tool accountability: every tool accounted for, every shift, with FOD risk designed out.
- Aerospace tool control and FOD: FOD incidents cut, as reported by the client at the time.
- MRO hangar flow: tooling and hangar-flow visibility that protects turnaround.
AMRs and AGVs in aircraft MRO
In a hangar, the wait for parts, tools and kits often holds up the job more than the work itself. We help you choose the right AMR or AGV for each run, then check what it takes to operate them around aircraft, stands and people.
- Parts, kits and tools delivered from stores to the MRO bays.
- Moving components between the hangar, workshops and stores.
- Returning unserviceable parts and tools for checking or repair.
- Routes that work around aircraft, stands, ground equipment and people.
- Robot fleet management: one fleet manager for robots from different manufacturers, shared doors and chargers, and priority for aircraft-on-ground jobs. We check what it takes and help you make it work.
- Integration with your MRO and stores systems, so each move is recorded against the work order.
See AMR and AGV guidance, including AMR/AGV fleet management, or book a free 30-minute call to talk it through. Free briefs: AMR and AGV fleets, and AMR/AGV fleet management.
Frequently asked questions
How is RFID used in aircraft MRO?
Mainly for four jobs: tool control (check-out, check-in and shift-end accountability to prevent FOD), serialised and rotable parts traceability (part history carried on the part, aligned to ATA Spec 2000 Chapter 9), calibration control (tools cannot be issued once out of calibration), and GSE and kit location. Passive RFID scales across cribs, stores and kits; UWB or BLE is used where you need live location in the hangar.
What is ATA Spec 2000 Chapter 9?
It is the aviation industry standard for automated identification and data capture on aircraft parts, covering permanent part marking and the data carried on RFID tags and barcodes. Airbus has required RFID part marking since the A350 XWB and extended RFID labels to major components across its aircraft (Fujitsu/Airbus announcement, May 2014). If you receive tagged parts, your stores and shop floor can read that history instead of re-keying it.
Do we need RTLS or is RFID enough for tool control?
For most cribs, drawers and kits, passive RFID at issue and return points is enough to prove every tool came back. RTLS (usually UWB) adds live, sub-metre location in the hangar, so a tool last seen beside the aircraft at shift end can be found before the aircraft moves. We size that choice per bay and per process, not per site.
Which MRO systems can this integrate with?
We design integrations to the maintenance and ERP systems MRO operators already run, including your MRO/M&E system, ERP or EAM, so tool events, part scans and calibration status land in the work order rather than a separate dashboard.
Do you sell tool cabinets, tags or software?
Only if you choose. Advice comes first; supply is optional and on a separate contract from our advice. We define requirements, run the supplier selection and pilot, and hold suppliers to acceptance criteria.
What does an MRO engagement cost?
Engagements usually start with a discovery and scoping stage (typically 1 to 5 days on site) or with supplier selection and RFP support. Every engagement is scoped per project and priced in writing before work starts: £3k to £30k per project, or £1,200 a day. Regional ranges for Europe, North America and other regions are on how we work.
Aviation MRO: track tools, calibration and engine overhaul parts
Play the video (1:22). It loads from YouTube when you click.
Also covered in aircraft MRO
Related: aerospace & MRO, FOD prevention, aerospace tool-control & FOD case study (before TRACIO was set up), AS9100, tool & equipment control and what RTLS costs.
Last updated: