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Operational Flight Plan Monitoring: Questions and Answers

How TripAI keeps the airline's Operational Flight Plan visible in flight, reconciles each completed flight and supports comparable-flight review.

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TripAI Team
4 min read
Operational Flight Plan Monitoring: Questions and Answers

Airlines already have flight-planning and dispatch systems. What does TripAI add?

Those systems remain the source of the plan and the release. TripAI adds a read-only monitoring and reconciliation layer above them. It keeps the released Operational Flight Plan (OFP) visible while conditions change, closes each completed flight against that same baseline and makes comparable operations straightforward to review. It is advisory, it sits outside the release path, and it is designed to be useful without changing who decides.

Does TripAI create or release a new Operational Flight Plan?

No. TripAI does not generate an OFP, does not amend one and does not issue a dispatch release. It reads the airline-controlled plan as the trusted baseline and reports how the operation is tracking against it. Replanning, rerouting, re-dispatch and every operational decision stay with dispatch, the Operations Control Centre (OCC) and the flight crew under approved airline procedures.

What information can TripAI read from the Operational Flight Plan?

The structured content the plan already contains: flight identity, route and waypoints, planned distances and timing, the fuel ledger from taxi and trip fuel through contingency, alternate and final reserve, planned weights, alternates, the cruise and step-climb profile, and cost-index or performance assumptions where the airline provides them. Those fields are normalised into traceable values with units, timestamps and source recorded, so every displayed number can be traced back to where it came from.

Which operational data sources can support live monitoring?

The OFP or dispatch feed supplies the plan. Automatic Dependent Surveillance-Broadcast (ADS-B) supplies an independent movement signal. Weather feeds supply winds, temperatures, turbulence, convection and icing context. Airport state and Notice to Air Missions (NOTAM) feeds supply runway state, restrictions and flow constraints. The Aircraft Communications Addressing and Reporting System (ACARS) supplies official gate-out, takeoff, landing and gate-in (OOOI) events and aircraft-reported fuel messages once integrated. Load control supplies actual weights, and Quick Access Recorder (QAR) or Flight Data Monitoring (FDM) supports post-flight validation. Each source is shown with its real connection state, and basic monitoring does not require QAR.

Can ADS-B provide official fuel values or official OOOI times?

No. ADS-B is a movement and profile signal. It supports position, altitude in feet, ground speed, track, phase awareness and timing proxies, and those proxies are labelled as proxies rather than official events. Official OOOI times should come from ACARS or airline systems, and aircraft-reported fuel should come from airline systems or ACARS. ADS-B is not a source of aircraft fuel truth.

How does TripAI explain a fuel, time or route difference?

By separating what is observed from what is modelled. The monitor shows the difference against plan, then attributes it across recognisable operational drivers such as wind component, route residual, flight-profile progression and ground flow, with the attribution reconciling to the displayed total. Until connected weather, ACARS and QAR or FDM data allow calibration, the attribution is scenario-based and labelled that way. A single flight does not prove causality, and a lower observed cruise level is treated as something to explain, not as a violation.

Does fuel burn below plan represent a validated fuel saving?

No. A difference from plan is plan variance or fuel drift. Calling it a saving would require a validated counterfactual and calibrated data. TripAI reports burn above plan and burn below plan, route residual and time residual, and keeps landing fuel and on-block fuel as separate boundaries, because they describe different points in the operation and mixing them produces a misleading number.

What does Flight Closeout add beyond live monitoring?

A durable record. Live monitoring answers what is changing now. Closeout answers what happened against plan, using consistent definitions for block, taxi-out, airborne and taxi-in time, route distance, fuel boundaries, reserve protection and profile progression, together with a data-quality summary. Because every flight closes the same way, the records stay comparable instead of becoming a series of one-off reviews.

How far back does a comparable-flight review look?

As far back as the airline chooses. Comparable-Flight Review works over a configurable window rather than a fixed one. Teams can group completed records by route, airport pair, aircraft family, fleet, weather regime, departure bank, hub, mission profile, operational period or a selected date range. What matters is that the flights are genuinely comparable and that each record was closed against a validated OFP with known source quality.

How can an airline begin safely?

With read-only monitoring on a limited scope. Start with one fleet, route family or operational slice, connect historical OFP and closeout records, establish source quality, reconcile plan-versus-observed boundaries and tune thresholds with the teams who will use them. Nothing enters the operational release path, and the authority of dispatch, the OCC and the flight crew is unchanged. Scope widens once the records and the explanations have earned confidence.

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