Knowledge Base

  • Pratt & Whitney GTF storage policy update

    Cirium is reverting the default stored aircraft period for Pratt & Whitney GTF-powered aircraft to the standard 60-day threshold applied across all narrowbody aircraft.

    This decision has been driven by market feedback and is supported by statements from Pratt & Whitney indicating that the situation continues to improve. Further evidence comes from our own research, with internal flight tracking data showing an increasing number of previously grounded aircraft returning to service.

    The change in policy will take effect from Monday 27th July.

  • OEM Name Changes

    As part of our ongoing efforts to improve data consistency and reflect real world industry developments, we are updating the names of selected Original Equipment Manufacturers across Cirium products and datasets.

    These changes align our datasets with current manufacturer naming standards.

    What is changing?

    We are updating OEM names in our datasets to reflect their current, widely recognised industry names.
    Specifically:

    AircraftManufacturer Change
    CRJ100/200, CRJ700, CRJ900, CRJ1000 and CRJ Family aircraftBombardier (Canadair) CRJs → Mitsubishi
    Viking Air aircraftViking Air → De Havilland Canada
    Continue reading

  • New country – Kosovo

    Cirium has recently made a change in our geographical data, creating Kosovo as a country which is now independent from Serbia.

    If you have created Saved Searches involving either country then please check them and update if necessary.

    The change will be effective from Thursday 7th May 2026.

  • Business Jet Taxonomy Update

    Based on market feedback, Cirium is updating its aircraft taxonomy for two business jet families.

    The Legacy 450 and Praetor 500 are currently treated as separate aircraft types. However, given the growing number of retrofit conversions between these models, Cirium will consolidate them into a single aircraft type: “Praetor 500 / Legacy 450.”

    Similarly, Bombardier now offers the conversion of existing Global 7500 aircraft to Global 8000 specification. As a result, Cirium will also combine these into a single aircraft type: “Global 7500 / Global 8000.”

    As part of this rework, some FG IDs may change for affected aircraft. Customers are therefore advised to review any saved queries or workflows that rely on the unique FG ID.

    If you have Saved Searches that include the aircraft types noted above, please review and update them as required.

    The updated, combined aircraft types will be reflected in the data from Tuesday, 5 May.

  • Commercial Blended Wing Body Types

    Cirium is pleased to announce the introduction of the first commercial Blended Wing Body (BWB) aircraft types into our Commercial Fleets Data.

    A BWB aircraft integrates the fuselage and wings into a single, continuous lifting surface, replacing the traditional configuration of a discrete fuselage with attached wings.

    Initial aircraft types to be included, based on known commercial commitments:

    • JetZero Z4
    • Natilus Horizon Evo

    To support market segmentation, Cirium has also introduced a new market class and grouping within the Commercial Market sector.

    Market Sector – Commercial

    Market Class – Blended Wing Body Jets

    Market Grouping – Blended Wing Body Jets

    Cirium will continue to monitor this emerging area of the market, expanding coverage to include additional commitments and aircraft types as announcements are made.

    Data will be released on Wednesday 29th April.

  • Introducing Ownership Types

    Cirium has released Ownership Types in Fleets Analyzer, giving aviation professionals deeper visibility into how aircraft are financed and operated across the global fleet.

    Continue reading

  • Introducing Estimated Lease Expiries

    Responding to user feedback, Fleets Analyzer will now contain Estimated Lease Expiries, a new enhancement designed to improve visibility into aircraft lease tenures where researched lease end dates are unavailable.

    Continue reading

  • Middle East Fleets Update – 23rd March

    Further to our post on 12th March regarding the monitoring of Middle East based fleets amid the ongoing conflict, Cirium has reviewed and updated the status of non‑military fleets in two additional countries—Syria and Qatar—to Storage. 

    This adds to the previous countries announced – Iran, Iraq, Kuwait and Bahrain.

    It should be noted that for certain operators, parts of their fleets are currently operating outside of their home country. In these cases, the relevant aircraft have been retained as In Service. 

    Additionally, a number of aircraft have been ferried from their home countries to storage locations outside the affected areas, and this is reflected in the fleets data.

    As previously stated, the Fleets Research team continues to closely monitor flight activity across the region and will update fleet statuses as the situation evolves. Any wider updates will be posted here to keep customers posted of our latest policy for particular countries.

  • Middle East Fleets Update – 12th March

    Further to our post on 4 March regarding the monitoring of Middle East based fleets amid the ongoing conflict, Cirium has reviewed and updated the status of non‑military fleets in two additional countries—Kuwait and Bahrain—to Storage.

    It should be noted that for certain operators, such as Gulf Air, parts of their fleets are currently operating outside of Bahrain. In these cases, the relevant aircraft have been retained as In Service.

    As previously stated, the Fleets Research team continues to closely monitor flight activity across the region and will update fleet statuses as the situation evolves. Any wider updates will be posted here to keep customers posted of our latest policy for particular countries.

  • AH-64 / CH-47 Histories Rework Complete

    Cirium is pleased to confirm that the recently announced rework of aircraft histories for the Boeing AH-64 Apache and Boeing CH-47 Chinook to better represent remanufactured airframes is now complete.

    As mentioned previously, the histories rework has meant some aircraft changing internal ID (FG ID) but the data rework is now finished so any data analysis will now incorporate those changes.

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Welcome to the knowledge base

What you can expect to find here: tips for users to get the most out of Fleets Analyzer, tricks for power users who are already in the know, product updates including sneak peeks and new features, and news about new data sets and taxonomy changes.

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