In aviation maintenance, having the right tool is only half the challenge. It must also be available, calibrated and ready when technicians need it. For Maintenance, Repair and Overhaul (MRO) providers, effective tooling lifecycle management is essential to maintaining shop efficiency and avoiding unnecessary downtime.

At MRO Americas 2019, Ethiopian Airlines and RH Aero shared their experience developing maintenance capabilities for the GE GEnx-1B engine used on the Boeing 787 Dreamliner. Their collaboration demonstrates how technical expertise, early planning and ongoing tooling support contribute to long-term MRO readiness.

What Is Tooling Lifecycle Management?

Tooling lifecycle management covers the complete service life of aviation maintenance equipment, from initial requirements and procurement through installation, training, monitoring, calibration, repairs and upgrades.

A structured approach helps MRO operators maintain tooling compliance, plan maintenance requirements and ensure equipment remains available throughout its operational life.

The Ethiopian Airlines case study followed five interconnected stages: evaluation, configuration, delivery and setup, monitoring, and repair and upgrade.

Planning for Today's Needs and Tomorrow's Growth

As Ethiopian Airlines expanded its engine maintenance capabilities, the airline worked with RH Aero to develop a tooling configuration for GEnx-1B combustor quick-turn maintenance, with performance restoration also under development.

The collaboration began with an on-site assessment of existing maintenance processes, facilities and equipment. Rather than simply supplying tools from an OEM list, RH Aero evaluated the intended workscopes and how engines would move through the facility.

The initial shop was planned to handle one engine at a time, with expansion to three concurrent engines anticipated. To accommodate this growth, the teams planned four disassembly and assembly bays and positioned the vertical engine build stand with future expansion in mind.

Tooling quantities were then matched to the shop layout, expected workload and duration of individual maintenance tasks.

This approach helped Ethiopian Airlines plan its initial investment while preparing the facility for growing maintenance requirements.

From Tool Delivery to Operational Readiness

Once the tooling configuration was established, attention shifted to integrating the equipment into daily operations.

This included identifying calibration and load-testing requirements, preparing hydraulic, pneumatic and electrical connections, and organizing storage according to tool size, weight and frequency of use.

Training was another essential part of the process. GE provided engine-specific maintenance training, while RH Aero supported technicians with tooling familiarization and technical documentation.

By combining practical training with a shop layout designed around the maintenance workflow, Ethiopian Airlines could prepare its teams to use the equipment effectively.

Moving from Reactive to Proactive Tooling Maintenance

A central topic of the case study was the transition from reactive tooling maintenance to proactive lifecycle management.

At the time, Ethiopian Airlines used its MaintainX system to manage tooling activities, including repairs and calibration. However, the airline recognized the need to improve forecasting, tracking and preventive maintenance.

The goal was to anticipate calibration deadlines, inspections, repairs and modifications before they could interrupt scheduled maintenance.

With proactive monitoring, MRO operators can plan servicing around expected shop demand, identify tooling that may require replacement and respond to changes in OEM maintenance requirements.

Access to qualified technical support is equally important. As tooling specifications and maintenance procedures change, equipment may need to be inspected, modified or upgraded to remain compliant.

What Can MRO Operators Learn from Ethiopian Airlines?

The Ethiopian Airlines case study illustrates that tooling readiness begins well before equipment arrives and continues throughout its service life.

Successful lifecycle management depends on accurate workscope planning, suitable shop infrastructure, technician familiarization and a structured approach to maintenance and calibration.

For RH Aero, the lessons from this collaboration remain central to its approach to Engine & Airframe Tooling and lifecycle services: combining technical expertise with long-term support to help OEM partners and customers maintain operational readiness.

Because when a technician needs a tool, it must be ready to perform.