Knowledge Base

  • Upcoming Data Update: Retirement of Reported Utilization and Addition of New Utilization Data Set

    Key changes: 

    • New data set: combines historical reported utilization with contemporary tracked utilization where this was possible. 
    • Retirement of Reported Utilization: reported utilization will be retired and replaced by the new data set. 
    • Preservation of Historical Data: All historical reported utilization will be preserved in the new data set and visible under new column headings. 
    • Effective Date: The last date for reported utilization for any aircraft is June 2024. After this date, the data will be blended with tracked data for more timely and enhanced coverage. 
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  • Delivery Event Description Change

    Cirium is making a couple of tweaks to event descriptions based on market feedback.  

    Current VersionNew Version
    Delivered (hand over)Delivered
    Delivered (hand over) – parkedDelivered  – parked

    If you have created Saved Searches with any of the events listed above, please check them and update if necessary.

    These changes will be made effective from Wednesday 11th December.

  • Aircraft Fleet Taxonomy Updates

    Cirium is making a series of updates to our aircraft taxonomy to keep our data up to date with market feedback and also for consistency across our datasets.  

    If you have created Saved Searches with any of the types listed below, please check them and update if necessary.

    These changes will be made effective from Wednesday 20th November.

    Continue reading

  • Commercial Aircraft Base Location Improvements

    Over the past 6 months, the data teams have been working hard to improve the coverage, accuracy and currency of our commercial aircraft base location data.

    Cirium defines a Base as the operational location that the aircraft arrives / departs from most often, whilst also factoring in consistent overnight stops using flight activity data.

    Our Data Research and Data Science Teams have been able to utilise internal tracking data to provide Base Location Data for over 32,000 commercial aircraft ( more than 90% of the fleet), with updates at least once per week to refresh the data with the latest information.

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  • Storage Definition Update: Commercial Aircraft

    With the majority of Mainline and Aircraft, Crew, Maintenance & Insurance (ACMI) fleets returning to pre-2020 activity we have updated our rules for defining an In Storage status.

    During the pandemic tolerances for a Storage status were reduced as the frequency and certainty of Storage events increased. As incidents of Storage are now decreasing, we have expanded the length of time a commercial aircraft must be parked before a Storage status is applied.

    If a commercial aircraft exceeds these tolerances a Storage status will be applied. The parking tolerances for Commercial Fleets are:

    • 60 days for narrowbodies.
    • 90 days for widebodies.
    • Unless at a known storage site where a return off-lease or parting out may happen.

  • TU & Emissions Improvements

    Please be aware of minor changes to TU & Emissions figures as we continually improve our methodology to bring you the industry’s most accurate data.

    The data team at Cirium has updated the methodology which has a number of accuracy improvements resulting in changes to flight fuel and CO2 emissions figures.

    Tracked Utilization also includes a number of data quality and coverage improvements resulting in more flights for more aircraft being tracked.

    You can read more about our emissions methodology here.

  • Airport Name Changes

    Work will commence from Monday 15th July to create a common name for airports across all Cirium products, as well as consistency in all station variances such as helipads, airfields, air bases etc.

    Continue reading

  • Categorisation Change

    Dear customers,

    We have updated all columns & filters containing ‘Country’ or ‘Countries’ to now display as ‘Country/Subregion’ or ‘Countries/Subregions’. 

    The change has been made to more accurately summarise the data these columns & filters represent. 

    Please be aware this will have an impact on saved excel functions, which will need to be updated accordingly. 

    Thank you for your cooperation.

  • 5th Feb Carrier Name Changes

    Here at Cirium we strive to ensure we provide customers with the most up to date and accurate data, part of that involves both minor changes that can happen daily and larger tranches. 

    As part of this we have updated the airline carrier naming to make this consistent across Cirium products, to stay as accurate as possible and to stay aligned with the market.

    Continue reading

  • Changes to hours and cycles – Projection tab

    On Monday 29th May 5th June we’ll be making a small change to the rules that determine how we allocate hours and cycles to aircraft for which we receive no reported utilisation. These changes effect the Projection tab only.

    On the Projection tab of Fleets Analyzer, if we have no reported utilisation data for an aircraft, we allocate hours and cycles via the following set of rules (shown in order of precedence):

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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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