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

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 11^th December.

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 20^th November.

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.

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.

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.

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.