UNSCHEDULED OUTAGE – Inmarsat I4F1 – All Services Impacted – Update #11

19. April 2023 - 22:04:02 CESTVERÖFFENTLICHTMailversand: 2023-04-19 22:00:06

Inmarsat are currently experi­encing an Ongoing Unplanned Outage on their I‑4 F1 Satellite affecting all L‑Band Services in the Asia-Pacific Region. Some services have been restored and more continue to recover onto the network.

Status Unplanned Outage – Ongoing
Network and Service Inmarsat: I‑4 F1 Satellite Asia-Pacific Region

All Services – L‑Band

Start Time 16th April 2023 22:50 UTC
End Time Ongoing
Outage Infor­mation Please be advised that recovery proce­dures to restore services on the Inmarsat I‑4F1 Satellite are ongoing.

Inmarsat has recovered the I‑4 F1 satellite, which suffered a partial loss of power. That loss of power invoked automatic proce­dures on the satellite that led to the suspension of services. Work continues to optimise perfor­mance and address some specific residual issues.

The company has confirmed that:

All safety services have now been restored. Classic Aero services were successfully restored yesterday (18 Apr). Maritime safety services, which had been trans­ferred to contin­gency satel­lites in line with the IMSO approved opera­tional process, were trans­ferred back to I‑4 F1 yesterday (18 Apr) following reacti­vation of Inmarsat C.Inmarsat’s Broadband Global Area Network (BGAN) services, including Swift­Broadband and SwiftBroadband-Safety, Fleet­Broadband and BGAN, are now restored and being optimised.Most leases have now been restored, with remaining ones a priority and expected shortly.GSPS (satellite phone) services are still being addressed. A further update will be provided within 24 hours.

Inmarsat regrets the outage and apolo­gises to all impacted users. Many of the services currently delivered by I‑4 F1 will be moved to Inmarsat’s new, high-performance I‑6 F1 satellite in the coming months as Inmarsat’s investment in new and additional satel­lites continues.

We apologise for any incon­ve­nience this may cause. 

Abbreviations and their meaning

  • Americas I-4 = Satelite responsible for the region of North- and Southamerica
  • APAC = Asia Pacific
  • BGAN = Broadband Global Area Network. Inmarsat service for BGAN devices
  • CDR = Call Detail Record
  • EMEA = Satellite responsible for the region of European Middle East Africa
  • FB or FBB = FleetBroadBand. Inmarsat service for FBB devices
  • GSPS = Global Satellite Phone Service. Inmarsat voice service for IsatPhone
  • IRIS = Remote monitoring and control system
  • SB or SBB = SwiftBroadBand. Inmarsat service for SBB devices
  • TBC = To be confirmed
  • UTC = Universal Time Coordinated

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