Operator Safety Criteria
How Triumph Jets evaluates and selects the air carriers we trust with our clients.
The Triumph Jets Operator Safety Criteria (OSC) is our proprietary rating system for evaluating the air carriers in our network. Drawing on extensive historical performance data from thousands of flights, the OSC delivers a comprehensive view of expected operator performance.
Unlike relying solely on third-party rating organizations or a single data point like aircraft age, the OSC synthesizes multiple relevant performance indicators — and importantly, it rates the entire fleet of an operator, not individual aircraft.
The on-demand charter market is dynamic and fragmented. New aircraft regularly enter charter operations while existing inventory may quickly leave the market. Operators vary in size, scale, and booking requirements, leading to fluctuations in service due to staff turnover, changing practices, and fleet utilization.
Recognizing these challenges, Triumph Jets began tracking key performance data for all operators in our network, updating ratings on an ongoing basis. The OSC provides a relative scale to evaluate operators of all types and sizes, offering a current indication of expected performance.
The OSC rates operators on a scale of 0 to 100.
Operational soundness is foundational for Part 135 air carriers. We evaluate organizational infrastructure, quality of staff in charter sales, flight operations, and accounting, as well as confidence-inspiring internal processes.
Effective communication is vital for successful charter operations. We assess response time to inquiries (especially before and during trips), proactive updates on trip details (crew changes, tail number changes, FBO swaps, weather), and internal coordination between Sales, Ops, and crew teams.
An operator's service can fluctuate due to various factors. We consider passenger feedback on crew, aircraft condition, and in-flight experience; delays and mechanical issues caused by operators; and last-minute operational changes such as aircraft swaps, payload restrictions, or catering failures.
We evaluate the perceived condition of an operator's entire fleet through passenger feedback over time, average Year of Manufacture (YOM) and refurbishment dates, and in-person inspections, photos, and videos provided by the operator.
Fleet size indicates an operator's ability to complete missions reliably over time. While small fleets can deliver consistent results, larger fleets typically have the infrastructure and backup aircraft to ensure mission completion.
We consider ARG/US, ISBAO and Wyvern ratings as part of a broader assessment — rather than relying solely on their standards as a pass/fail gate.
Aircraft age is a nuanced factor. Newer aircraft offer advanced technology, but well-maintained older aircraft with updated interiors can be equally marketable and safe.
Operators active on their current Part 135 certificate for longer periods typically demonstrate greater commitment and experience in charter operations.
Operators whose primary focus is on-demand charter tend to fulfill Part 135 missions more reliably than those who treat it as a secondary revenue channel.
The OSC score reflects Triumph Jets' experience with direct air carriers and represents our opinion on their performance and capabilities. It does not make representations about the safety record or certification status of any direct air carrier, pilot, or aircraft. The OSC is not based on any external auditing organization's standards and does not guarantee future performance on any flight.