Aircraft availability — the percentage of time a fleet is serviceable and able to fly — is one of the most important operational metrics for any airline or MRO organisation. Every hour an aircraft spends on the ground for maintenance reasons that are not planned and scheduled represents a failure of the supply chain, the maintenance planning process, or both.
Boeing STD tooling is a component of that supply chain that is frequently underestimated. Because STD tools are not consumables — they are not replaced after every use — they tend to receive less procurement attention than parts and materials. The assumption is that the tools are already in the workshop. In practice, tools are lost, damaged, sent for calibration, or simply not available at the location where the aircraft is being maintained. When a required STD tool is not available, the maintenance task cannot proceed.
The solution is not simply to hold more stock. Holding large quantities of every STD tool at every maintenance location is capital-intensive and operationally impractical. The more efficient approach is to have a supply chain that can deliver the required tool quickly when it is needed. This is where logistics optimisation becomes directly relevant to aircraft availability.
Jazari Aerospace's dual-location model — with fulfilment capability from both the United Kingdom and the United States — is designed to minimise the transit time between the supplier and the customer. For a European MRO organisation, UK-based stock means same-day or next-day delivery for most destinations. For a US operator, US-based stock provides equivalent speed. The practical effect is that an unplanned requirement for a Boeing STD tool does not automatically result in a multi-day delay.
The second element of logistics optimisation is process speed. A fast physical supply chain is undermined if the procurement process itself introduces delays. Jazari Aerospace's RFQ process is designed to be rapid: AOG requirements receive a quote response within two hours, and routine enquiries are answered within one business day. The time between identifying a tooling requirement and receiving a confirmed order should be measured in hours, not days.
For maintenance planning teams, the practical implication is that Boeing STD tooling should be treated as a supply chain risk to be managed, not a fixed asset to be assumed available. Establishing a relationship with a specialist supplier, understanding their lead times, and using their AOG capability when needed is a straightforward way to reduce unplanned downtime and improve fleet availability.