Time Running Out on Old Laserefs | Aviation International News

Time Running Out on Old Laserefs

Operators of older business jets will need to plan on upgrading their Laseref inertial reference systems.

By Matt Thurber • Editor-in-Chief

July 7, 2020

Business jets equipped with older Honeywell Laseref II and III inertial reference systems (IRS) face an expensive obsolescence problem, but a solution is available. This isn’t a new issue as Honeywell has been warning owners and operators about it since 2016, but there are still hundreds of perfectly flyable jets equipped with the older Laserefs that will need an upgrade if any of their IRSs fail. In February 2019, Honeywell notified operators that repairs and rentals of Laseref IIs and IIIs would end.

The main problem for these aircraft is that the Laseref II and III units are no longer repairable because parts are not available, explained Trent Tseunis, Honeywell Aerospace director of offering management for navigation and sensors. Customers enrolled in Honeywell’s Maintenance Service Plan (MSP) Avionics coverage do have support for repairs until the end of this year, but then they will have to do what all operators with Laseref II and III IRSs will need to do: upgrade their systems.

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