Cirium Outage History
143 incidents recorded over the last 365 days, 79 of them resolved. Durations are measured from when PulsAPI first saw the problem to when it cleared, which is usually longer than the vendor's own figure.
Every Recorded Cirium Incident
| Date | Incident | Duration | Status |
|---|---|---|---|
| Nov 25, 2026 | Weekly Scheduled Maintenance - Flights Data Processing systemWe will be performing scheduled maintenance of our Flights Data Processing system on Wednesday, 25th November, from 09:00 to 11:00 UTC. During this period, the system will undergo a series of routine maintenance tasks… | 2h 0m | Scheduled |
| Nov 18, 2026 | Weekly Scheduled Maintenance - Flights Data Processing systemWe will be performing scheduled maintenance of our Flights Data Processing system on Wednesday, 18th November, from 09:00 to 11:00 UTC. During this period, the system will undergo a series of routine maintenance tasks… | 2h 0m | Scheduled |
| Nov 18, 2026 | Scheduled Maintenance - Flights Data Processing, Sky Stream, Flight Data Processing, Positional Data Processing, Flight Data Acquisition, and Notam APIsWe will be performing scheduled maintenance on our Flights Data Processing, Sky Stream, Flight Data Processing, Positional Data Processing, Flight Data Acquisition, and NOTAM APIs system on November 18th, 2026, from… | 5h 0m | Scheduled |
| Nov 11, 2026 | Weekly Scheduled Maintenance - Flights Data Processing systemWe will be performing scheduled maintenance of our Flights Data Processing system on Wednesday, 11th November, from 09:00 to 11:00 UTC. During this period, the system will undergo a series of routine maintenance tasks… | 2h 0m | Scheduled |
| Nov 10, 2026 | Planned Maintenance - Flight Alerts API - 10th November 2026We will be performing maintenance affecting the Flight Alerts API on Tuesday, 10th November, from 05:30 to 06:30 UTC. During this period, the service will undergo a series of maintenance tasks and upgrades. No extended… | 1h 0m | Scheduled |
| Nov 8, 2026 | Scheduled Maintenance - PDS Fleets & ValuesWe will be performing scheduled maintenance of our PDS Fleets & Values Services on Sunday, 8th November from 08:00 to 13:00 UTC. During this period, the system will undergo a series of routine maintenance tasks. Users… | 5h 0m | Scheduled |
| Nov 4, 2026 | Weekly Scheduled Maintenance - Flights Data Processing systemScheduled maintenance is currently in progress. We will provide updates as necessary. | 2h 0m | Scheduled |
| Nov 4, 2026 | Planned Maintenance - Trips System 4th November 2026.Scheduled maintenance is currently in progress. We will provide updates as necessary. | 4h 0m | Scheduled |
| Nov 1, 2026 | Scheduled Maintenance - PDS Fleets & ValuesScheduled maintenance is currently in progress. We will provide updates as necessary. | 5h 0m | Scheduled |
| Oct 30, 2026 | Diio Mi and SRS Analyser Schedule Load DelayThis incident has been resolved. | 9h 28m | Resolved |
| Oct 28, 2026 | Weekly Scheduled Maintenance - Flights Data Processing systemScheduled maintenance is currently in progress. We will provide updates as necessary. | 2h 0m | Scheduled |
| Oct 28, 2026 | Scheduled Maintenance - My Cirium - 28th October 2026Scheduled maintenance is currently in progress. We will provide updates as necessary. | 3h 0m | Scheduled |
| Oct 27, 2026 | Investigating issues with Fleets Analyzer and DashboardThis incident has been resolved. | 16h 18m | Resolved |
| Oct 27, 2026 | Planned Maintenance – Flex ServicesScheduled maintenance is currently in progress. We will provide updates as necessary. | 1h 0m | Scheduled |
| Oct 26, 2026 | Scheduled Maintenance - Flight Alerts APIScheduled maintenance is currently in progress. We will provide updates as necessary. | 30 min | Scheduled |
| Oct 21, 2026 | Weekly Scheduled Maintenance - Flights Data Processing systemScheduled maintenance is currently in progress. We will provide updates as necessary. | 2h 0m | Scheduled |
| Oct 14, 2026 | Degraded Performance Issues - Developer StudioThis incident has been resolved. | 1h 54m | Resolved |
| Oct 14, 2026 | Weekly Scheduled Maintenance - Flights Data Processing systemThe scheduled maintenance has been completed. | 2h 0m | Scheduled |
| Oct 14, 2026 | Scheduled Maintenance - Developer Studio - 14th October 2026The scheduled maintenance has been completed. | 2h 0m | Scheduled |
| Oct 13, 2026 | Scheduled Quarterly Maintenance - Cirium Sky API Platform - 13th October 2026The scheduled maintenance has been completed. | 3h 0m | Scheduled |
| Oct 7, 2026 | Unscheduled Maintenance - Diio Mi and SRS AnalyserThe scheduled maintenance has been completed. | 2h 0m | Scheduled |
| Oct 7, 2026 | Tracked Utilization Data DelayThis incident has been resolved. | 20h 32m | Resolved |
| Oct 7, 2026 | Weekly Scheduled Maintenance - Flights Data Processing systemThe scheduled maintenance has been completed. | 2h 0m | Scheduled |
| Oct 7, 2026 | Users Experiencing Slow Loading in SRS Analyzer and Diio MiWe are continuing to observe stable performance for both affected services. We plan to release a patch shortly to address the underlying performance issues and will provide a maintenance notification in advance. | 5h 31m | Resolved |
| Oct 7, 2026 | Unplanned Maintenance | Cirium Sky Stream | 07 October 2026The scheduled maintenance has been completed. | 2h 0m | Scheduled |
| Oct 7, 2026 | Scheduled Maintenance - Diio Mi and SRS AnalyserThe scheduled maintenance has been completed. | 2h 0m | Scheduled |
| Oct 6, 2026 | SRS Analyser Service DisruptionThis incident has been resolved. | 12h 9m | Resolved |
| Oct 6, 2026 | Elevated API Errors affecting the Emissions APIOur engineers reverted a recent change and the Emissions API is now responding without errors. | 26 min | Resolved |
| Oct 6, 2026 | Degraded Performance Issues Cirium WorkbooksThis incident has been resolved and access to projects and workbooks as been restored in Tableau Workbooks. Should you encounter any further issues, please contact our Help Desk for assistance. | 8h 52m | Resolved |
| Oct 4, 2026 | Scheduled Maintenance - PDS Fleets & ValuesThe scheduled maintenance has been completed. | 5h 0m | Scheduled |
| Sep 30, 2026 | Reduced Message Frequency for Sky Stream Positional and Flight Status FeedsThis incident has been resolved. The cutover to our data provider's new production environment has been completed successfully, with no issues detected. Users can expect to see increased message volumes as a result of… | 290h 20m | Resolved |
| Sep 30, 2026 | Weekly Scheduled Maintenance - Flights Data Processing systemThe scheduled maintenance has been completed. | 2h 0m | Scheduled |
| Sep 30, 2026 | Flight Data Not Refreshed in Sky Data WarehouseThis incident has been resolved. | 5h 10m | Resolved |
| Sep 30, 2026 | Scheduled Maintenance - Trips Data Services - 30th September 2026The scheduled maintenance has been completed. | 4h 0m | Scheduled |
| Sep 29, 2026 | Reduced Message Frequency for Sky Stream Positional and Flight Status FeedsThe previously reported issue that resulted in reduced message frequency for the Sky Stream Positional and Flight Status Feed has been resolved. Data is now flowing normally, and services have returned to expected… | 20h 43m | Resolved |
| Sep 28, 2026 | Data Publication FailuresThis incident has been resolved. All affected datasets have been republished and are up to date. Please accept our apologies for any disruption caused and contact the Helpdesk should you have any questions. | 20h 51m | Resolved |
| Sep 28, 2026 | Unable to approve Sky API trial requestsThis incident has been resolved with the backlog of pending requests now approved. Please accept our apologies for the delay and contact the Helpdesk should you have any questions. | 21h 0m | Resolved |
| Sep 28, 2026 | Reduced Message Frequency for Sky Stream Positional and Flight Status FeedService has been restored and feed message frequency has returned to expected levels. We are continuing to work with the upstream data supplier to perform a back fill of any missing data impacted during the incident. We… | 11h 53m | Resolved |
| Sep 27, 2026 | Scheduled Maintenance - PDS Fleets & ValuesThe scheduled maintenance has been completed. | 5h 0m | Scheduled |
| Sep 23, 2026 | Cirium Sky Flight Status Feed API Degraded PerformanceThe issue affecting data availability into the Flight Status Feed API appears to be resolved. We are not currently seeing any reports of errors, and service is operating normally. We will continue to closely monitor the… | 3h 54m | Resolved |
| Sep 23, 2026 | Cirium Sky Positional Stream and Sky Flight Status Stream Service DisruptionThe incident affecting the Sky Positional Stream and Sky Flight Status Stream feeds has been resolved. The disruption lasted approximately 18 minutes, and delayed messages are now being published to the queues. Based on… | 27 min | Resolved |
| Sep 23, 2026 | Weekly Scheduled Maintenance - Flights Data Processing systemThe scheduled maintenance has been completed. | 2h 0m | Scheduled |
| Sep 23, 2026 | Unplanned Maintenance - My Cirium - 23rd September 2026The scheduled maintenance has been completed. | 2h 0m | Scheduled |
| Sep 17, 2026 | Scheduled Maintenance - Cirium Sky StreamThe scheduled maintenance has been completed. | 1h 0m | Scheduled |
| Sep 16, 2026 | Salesforce DisruptionOur instance of Salesforce has recovered and customer support enquiries are being received. | 4h 27m | Resolved |
| Sep 16, 2026 | Weekly Scheduled Maintenance - Flights Data Processing systemThe scheduled maintenance has been completed. | 2h 0m | Scheduled |
| Sep 16, 2026 | Planned Maintenance Window - Trips System - 16th September 2026The scheduled maintenance has been completed. | 4h 0m | Scheduled |
| Sep 15, 2026 | Investigating an issue with the creation of Sky API credentialsThis incident is resolved. Cirium Sky™ API credentials can be created without any errors. If you were affected, please retry retrieving your credentials and contact our Help Desk should you require further support. | 20h 17m | Resolved |
| Sep 14, 2026 | UPDATE: Schedule Updates Data Publication FailuresThis incident has been resolved. Incremental schedule updates are being loaded successfully on a daily basis. | 22h 27m | Resolved |
| Sep 10, 2026 | Investigating issues with Values Analyzer - Online ValuesThis issue has been resolved. All A321-200neo (XLR) valuations are running successfully. Please accept our apologies for any disruption caused and contact the Helpdesk should you require further assistance. | 21h 46m | Resolved |
| Sep 9, 2026 | Weekly Scheduled Maintenance - Flights Data Processing systemThe scheduled maintenance has been completed. | 2h 0m | Scheduled |
| Sep 8, 2026 | Fleets Analyzer - missing August 2026 Tracked Utilisation and Emissions dataThis incident has been resolved. | 46h 27m | Resolved |
| Sep 7, 2026 | Investigating - Fleets Analyzer Exports Stuck in "Requested" StatusThe Fleets Analyzer exporter is now completing the processing of requests. If you were affected, please go to https://dashboard.cirium.com/app/fleet/#/search/myexports and refresh the browser tab if required. Please… | 32 min | Resolved |
| Sep 7, 2026 | Investigating: Sky API Trial Credential Creation DelaysThis incident has been resolved. If you were affected, please request a new Sky API credential from https://my.cirium.com/my-account/credential-management. Please accept our apologies for the disruption and contact the… | 6h 39m | Resolved |
| Sep 6, 2026 | Scheduled Maintenance - PDS Fleets & Values, 6th September 2026The scheduled maintenance has been completed. | 5h 0m | Scheduled |
| Sep 3, 2026 | Scheduled Maintenance - Cirium Sky™ APIs and Cirium Sky™ Stream, 3rd September 2026The scheduled maintenance has been completed. | 30 min | Scheduled |
| Sep 2, 2026 | Weekly Scheduled Maintenance - Flights Data Processing systemThe scheduled maintenance has been completed. | 2h 0m | Scheduled |
| Sep 2, 2026 | Scheduled Maintenance - My Cirium - 2nd September 2026The scheduled maintenance has been completed. | 2h 0m | Scheduled |
| Sep 2, 2026 | Cirium Sky Warehouse Quarterly MaintenanceThe scheduled maintenance has been completed. | 7h 0m | Scheduled |
| Sep 2, 2026 | Scheduled Maintenance - Flightstats (Flex) API Platform - 2nd September 2026The scheduled maintenance has been completed. | 3h 0m | Scheduled |
| Sep 1, 2026 | Investigating issues with Fleets Analyzer Exporting featureWe are pleased to inform you that the incident affecting Fleets Analyzer exports has now been resolved. We sincerely apologize for any inconvenience or disruption this issue may have caused. If you continue to… | 18h 53m | Resolved |
| Sep 1, 2026 | Planned Maintenance - Cirium Sky Schedule Files - 1st Septmber 2026The scheduled maintenance has been completed. | 4h 0m | Scheduled |
| Aug 31, 2026 | Scheduled Maintenance: Potential Intermittent Login IssuesThe scheduled maintenance has been completed. | 1h 0m | Scheduled |
| Aug 30, 2026 | Scheduled Maintenance - PDS Fleets & Values, 30th August 2026The scheduled maintenance has been completed. | 5h 0m | Scheduled |
| Aug 27, 2026 | Diio Mi and SRS Analyser outageWe have rolled back a recent release, and service has been restored for both Diio Mi and SRS Analyzer. Our engineering team is continuing to investigate and isolate the root cause of the login issues. We sincerely… | 3h 49m | Resolved |
| Aug 27, 2026 | Investigating - Fleets Analyzer Exports Stuck in "Requested" StatusThe incident preventing the completion of Fleets Analyzer exports has been resolved. If you were affected, please go to https://dashboard.cirium.com/app/fleet/#/search/myexports and refresh the browser tab if required… | 5h 23m | Resolved |
| Aug 27, 2026 | Scheduled Maintenance: Security Enhancements for Diio Mi and SRSThe scheduled maintenance has been completed. | 2h 0m | Scheduled |
| Aug 26, 2026 | Investigating issues with Values Analyzer - Online ValuesOur engineers were able to identify the issue which has been resolved following the overnight database refresh. All A321-200neo (XLR) valuations are running successfully. Please accept our apologies for any disruption… | 21h 13m | Resolved |
| Aug 26, 2026 | Weekly Scheduled Maintenance - Flights Data Processing systemThe scheduled maintenance has been completed. | 2h 0m | Scheduled |
| Aug 24, 2026 | Cirium PDS File Delivery Outage - 23rd August 2026This incident has been resolved. | 11h 58m | Resolved |
| Aug 21, 2026 | Sky Schedule Files - Delivery DelayOur team has resolved the schedules data issue and are completing today's file delivery jobs. Please accept our apologies for any disruption the delay may have caused. | 3h 58m | Resolved |
| Aug 19, 2026 | Weekly Scheduled Maintenance - Flights Data Processing systemThe scheduled maintenance has been completed. | 2h 0m | Scheduled |
| Aug 19, 2026 | Scheduled Maintenance - Trips Data Services - 19th August 2026The scheduled maintenance has been completed. | 4h 0m | Scheduled |
| Aug 19, 2026 | Scheduled Maintenance: Security Enhancements for Diio Mi and SRSThe scheduled maintenance has been completed. | 2h 0m | Scheduled |
| Aug 18, 2026 | Sky Schedule Files - Delivery DelayThis incident has been resolved. | 9h 6m | Resolved |
| Aug 17, 2026 | Sky Warehouse Redshift Customers on IP Whitelisting unable to access accountsThis incident has been resolved. | 1h 35m | Resolved |
| Aug 17, 2026 | Scheduled Maintenance: Security Enhancements for Diio Mi and SRSThe scheduled maintenance has been completed. | 2h 0m | Scheduled |
| Aug 14, 2026 | Scheduled Maintenance - Diio Mi and SRS AnalyserThe scheduled maintenance has been completed. | 2h 0m | Scheduled |
| Aug 12, 2026 | Weekly Scheduled Maintenance - Flights Data Processing systemThe scheduled maintenance has been completed. | 2h 0m | Scheduled |
| Aug 10, 2026 | Intermittent Timeout Errors on Flight Track API and Historical Flight Status APIThis incident has been resolved. All affected APIs are operating normally. Please contact the Helpdesk should you observe any ongoing performance issues. | 38h 26m | Resolved |
| Aug 10, 2026 | FlightStats.com Performance Degradation and Historical Flight Lookup IssuesThis incident has been resolved. | 15h 3m | Resolved |
| Aug 9, 2026 | Cirium PDS Fleets and Values Schedule Maintenance (09/08/2026)The scheduled maintenance has been completed. | 5h 0m | Scheduled |
| Aug 5, 2026 | Weekly Scheduled Maintenance - Flights Data Processing systemThe scheduled maintenance has been completed. | 2h 0m | Scheduled |
| Aug 5, 2026 | Scheduled Maintenance - My Cirium - 5th August 2026The scheduled maintenance has been completed. | 3h 0m | Scheduled |
| Aug 4, 2026 | Degraded Performance Issues -SKY API Flight Track Error 503This incident has been resolved. | 1h 17m | Resolved |
| Aug 2, 2026 | Fleets Analyzer: Aircraft Summary Page Data Population IssueThis incident has been resolved. | 15h 34m | Resolved |
| Jul 29, 2026 | Weekly Scheduled Maintenance - Flights Data Processing systemThe scheduled maintenance has been completed. | 2h 0m | Scheduled |
| Jul 29, 2026 | Scheduled Quarterly Maintenance - Cirium APIs (Sky and Flightstats), Cirium Sky Warehouse, Cirium Sky StreamThe scheduled maintenance has been completed. | 5h 0m | Scheduled |
| Jul 28, 2026 | Scheduled Maintenance - SFTP delivery system for Cirium Sky Schedule FileThe scheduled maintenance has been completed. | 1h 0m | Scheduled |
| Jul 27, 2026 | Scheduled Maintenance – Heritage Products (FA/VA/DB)The scheduled maintenance has been completed. | 1h 30m | Scheduled |
| Jul 27, 2026 | Scheduled Maintenance – Trips SystemThe scheduled maintenance has been completed. | 1h 0m | Scheduled |
| Jul 22, 2026 | Weekly Scheduled Maintenance - Flights Data Processing systemThe scheduled maintenance has been completed. | 2h 0m | Scheduled |
| Jul 22, 2026 | Scheduled Maintenance - Trips Data Services - 22nd July 2026This incident has been resolved. | 43 min | Resolved |
| Jul 22, 2026 | Scheduled Maintenance Notification - Temporary Delay to Tracked Utilization UpdatesThe scheduled maintenance has been completed. | 2h 0m | Scheduled |
| Jul 21, 2026 | Scheduled Maintenance - Cirium Sky API Platform - 21st July 2026The scheduled maintenance has been completed. | 3h 0m | Scheduled |
| Jul 20, 2026 | Flight Data Acquisition System MaintenanceThe scheduled maintenance has been completed. | 1h 0m | Scheduled |
| Jul 20, 2026 | Scheduled Maintenance - Cirium Sky API Platform - Monday 20th JulyThe scheduled maintenance has been completed. | 1h 0m | Scheduled |
| Jul 17, 2026 | Schedule Data Ingestion Delay (Sky Warehouse)The upstream issue affecting Schedule data ingestion into Sky Warehouse has been resolved, and normal data flow has been restored. Schedule data is now current and available as expected. We apologize for any… | 75h 23m | Resolved |
| Jul 15, 2026 | EXTENDED: Scheduled Maintenance - Trips Data Services - 15th July 2026The scheduled maintenance has been completed. | 4h 59m | Scheduled |
| Jul 15, 2026 | Weekly Scheduled Maintenance - Flights Data Processing systemThe scheduled maintenance has been completed. | 2h 0m | Scheduled |
| Jul 15, 2026 | Scheduled Maintenance - Trips Data Services - 15th July 2026The scheduled maintenance has been completed. | 4h 0m | Scheduled |
| Jul 13, 2026 | Service Disruption - Historical Flight Status API and Historical Flight Status Lookup (Resolved)On Monday, 13th July 2026 from 13:53 UTC to 15:49 UTC, customers experienced HTTP 503 errors when accessing the Historical Flight Status API and no data returned from the Historical Flight Status tool on… | 0 min | Resolved |
| Jul 8, 2026 | Values Analyzer - temporary unavailability of Online Values for a subset of assetsThis incident has been resolved and Online Valuations can be ran for all the affected assets. Please accept our apologies for any disruption caused. | 215h 23m | Resolved |
| Jul 2, 2026 | Diio MI and SRS Analyser service outageThe incident has been resolved across all affected services. Please accept our apologies for any disruption caused and contact the Helpdesk should you require further assistance. | 1h 16m | Resolved |
| Jun 22, 2026 | Ongoing Incident - Cirium PDS SFTP file deliveries – 22nd July 2026This incident has been resolved. | 6h 24m | Resolved |
| Jun 9, 2026 | Diio MI and SRS Analyser outageOur engineers have identified the root cause of the issue. A fix has been applied and full access has been restored. The issue is now resolved. | 1h 28m | Resolved |
| May 9, 2026 | HTTP 503 Errors on FlightStats Flex Historical Flight Status APIThis incident has been resolved. | 4h 43m | Resolved |
| May 8, 2026 | Degraded Performance – Sky Stream NOTAMs Feed (AWS US‑East‑1)Our NOTAM feed has been fully restored and no other downstream issues have been observed. | 7h 51m | Resolved |
| May 3, 2026 | FlightStats.com Service Issue Affecting User LoginThis incident has been resolved. | 4h 2m | Resolved |
| May 1, 2026 | Cirium products outageWe experienced a short access and entitlement service outage today, 1st May, from approximately 11:50 to 12:15 UTC. The outage affected multiple products, including but not limited to Fleets Analyzer, Values Analyzer… | 0 min | Resolved |
| Apr 24, 2026 | Sky Warehouse Redshift Data Delay – 23 April 2026 - 24 April 2026This incident is now resolved and we will continue to monitor if any issue arises. Thank you for your patience. Please let us know if you have any questions. | 13h 24m | Resolved |
| Apr 17, 2026 | Failure of Fleets Data PublishingOur engineers have successfully completed the fleets data update. The latest data will be applied to all affected products as per their individual update schedules. An internal RCA is scheduled to fully understand the… | 2h 56m | Resolved |
| Apr 17, 2026 | Dashboard and Values Analyzer - Not functioning as expected.Our engineers have identified the root cause of the issue. A fix has been applied to restore normal performance levels. The issue is now resolved. | 3h 38m | Resolved |
| Apr 16, 2026 | Trip Alerts Delivery InterruptionThe incident affecting Trip alert deliveries has been resolved. Alerts are being delivered successfully and we are continuing to monitor performance closely. Please accept our apologies for any her disruption caused and… | 10h 28m | Resolved |
| Apr 14, 2026 | Alerts API Degraded PerformanceThis incident has been resolved. | 5h 55m | Resolved |
| Apr 14, 2026 | Schedule Snapshot temporarily unavailableThe incident has been resolved and the service is performing as expected. | 1h 32m | Resolved |
| Apr 14, 2026 | Potential failure of Fleets data publishingOur engineers have successfully completed the fleets data update. The latest data will be applied to all affected products as per their individual update schedules. An internal RCA will be carried out to understand the… | 3h 14m | Resolved |
| Apr 13, 2026 | No fleets aircraft data published on Sunday, 12th April.This incident has been resolved. We have successfully refreshed the fleets data and this update will flow through to Fleets Analyzer and Cirium Sky™ Warehouse. | 1h 30m | Resolved |
| Apr 13, 2026 | Fleets and Values Analyzer Auto-Suggest not workingThis incident has been resolved. | 1h 36m | Resolved |
| Apr 13, 2026 | No new content published to Dashboard and Pulse on 13th April 2026This incident has been resolved. | 3h 26m | Resolved |
| Apr 10, 2026 | Alerts API Degraded PerformanceThe issue causing degraded performance on the Alerts API has been resolved. Our alert service was fully restored as of 2026‑04‑10 at 18:00 UTC and alerts are now delivering successfully. We are continuing to monitor the… | 1h 8m | Resolved |
| Apr 8, 2026 | Alerts API Degraded PerformanceAlerts API customers may have experienced degraded performance beginning at 15:00 UTC today on 2026-04-08. A fix has been applied and alert generation was restored as of 16:27 UTC on 2026-04-08. We are monitoring the… | 0 min | Resolved |
| Apr 8, 2026 | Temporary removal of Alerts API SMTP delivery optionThis has been resolved and the SMTP (email) delivery option has been re-enabled in the Alerts API. | 1183h 46m | Resolved |
| Apr 8, 2026 | Fleets Analyzer - missing March 2026 Tracked Utilisation and Emissions dataMarch 2026 tracked utilisation and emissions data has been uploaded to Fleets Analyzer. Thank you for your patience. | 22h 47m | Resolved |
| Apr 8, 2026 | Investigating issues with Flight Track APIsThe issue was identified and fixed. This incident has been resolved. | 2h 14m | Resolved |
| Apr 1, 2026 | Missing Alerts from the Alerts APIWe’re pleased to confirm that this issue has now been resolved. Our engineering team identified and removed a number of invalid alert rule IDs, and the system is now operating as expected. We’ll continue to monitor… | 15h 46m | Resolved |
| Mar 30, 2026 | Degraded Performance Issues - Fleets and Values AnalyzerThis incident has been resolved. Fleets and Values Analyzer pages are loading as expected. | 26 min | Resolved |
| Mar 26, 2026 | Investigating issues with Fleets Analyzer - Aircraft - SummaryThis incident has been resolved. | 279h 11m | Resolved |
| Mar 25, 2026 | Intermittent Errors - FlightStats Flight Status APIThis incident has been resolved. | 15h 3m | Resolved |
| Mar 23, 2026 | Flight Data OutageThe VPN connection has been restored and flight data is being received as expected from the affected upstream providers. Please accept our apologies for any disruption caused and contact the Help Desk for further… | 54 min | Resolved |
| Mar 23, 2026 | PDS File Delivery DelaysWe are happy to report that the issue affecting PDS Fleets deliveries has been resolved. The solution has been thoroughly tested and we have full confidence in its reliability and stability. Please accept our apologies… | 167h 0m | Resolved |
| Mar 17, 2026 | Degraded Performance Issues - Cirium Sky API Platform, Flightstats.com and Trips Data ServicesThis incident has been resolved. Please accept our apologies for any disruption caused and contact the Help Desk for further assistance. | 1h 7m | Resolved |
| Mar 9, 2026 | Delay in latest emissions forecast and emissions historyThe delay impacting the latest release of emissions history and emissions forecast data has been resolved. Updated data will now be available across Cirium Sky Warehouse, Sky APIs, and Workbooks. Thank you for your… | 2h 27m | Resolved |
| Mar 8, 2026 | Access Failure Affecting Fleets Analyzer, Values Analyzer, and Dashboard.This incident has been resolved. | 1h 6m | Resolved |
| Mar 5, 2026 | Investigating issues with Fleets Analyzer - Trend and Projection tabsThis incident has been resolved. | 93h 40m | Resolved |
| Mar 2, 2026 | No data on the Sky Stream NOTAMS feedThis incident has been resolved. | 14 min | Resolved |
| Feb 26, 2026 | New Diio Reports Degraded PerformanceThis incident has been resolved. The performance issues are addressed and application is stable now. We will continue to closely monitor to ensure everything remains stable and will provide further updates if needed. | 15h 33m | Resolved |
| Feb 26, 2026 | Fleets Analyzer and Values Analyzer degraded perfomanceThe incident has been resolved and all services are performing as expected. | 5h 12m | Resolved |
| Feb 24, 2026 | Values Analyzer incorrect valuationWe are pleased to inform you that our engineers have resolved the technical issue, and the values will be available again in the Values Analyzer starting tomorrow morning. We apologize for any inconvenience this may… | 67h 19m | Resolved |
| Feb 23, 2026 | Schedule Load Failure, 2026 02-23The underlying schedule data issue for flights operating today has been corrected and successfully deployed. Flight data processing has resumed as expected, and we are seeing normal behavior. We will continue to closely… | 6h 7m | Resolved |
| Jan 30, 2026 | Missing data in Connections API for departure dates on or after 1/31/2026The issue with Connections API has now been resolved. Departure dates on or after 1/31/2026 in Connections API - Cargo connections is now available for querying. Thank you for your continued patience and understanding. | 26h 6m | Resolved |
| Jan 29, 2026 | Data Processing Delays affecting Cirium Sky Schedule FilesThe incident has been resolved and today's file deliveries are now in progress. Thank you for your continued patience and understanding. | 5h 19m | Resolved |
| Jan 28, 2026 | Cirium Sky Stream degraded performanceThis incident has been resolved. | 36 min | Resolved |
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How to Read This Cirium Incident Log
Each row is an incident PulsAPI observed, not a summary written afterwards. The duration is wall-clock time between the first failing check and the first clean one, so it includes the window before Cirium acknowledged anything. Vendor post-mortems typically measure from acknowledgement, which is why their numbers are usually shorter.
Incidents still open have no duration yet and are listed as ongoing rather than being given a running total. The archive covers the last 365 days; anything older has aged out of the window rather than never having happened.
The longest single Cirium outage in this window ran 49d 7h, against a mean recovery of 22h 8m. If you depend on Cirium in a customer-facing path, the longest figure is the one to design around. The mean is what happens on a normal bad day; the maximum is what happens on the worst one.