the_other_dougreeves

Well Known Member
From AeroNewsNet...

Solved! Garmin Provides Resolution to GRS 77 AHRS Issue

Mon, 20 Aug '07

As previously reported, issues arising from unexpected failures in a component of Garmin's G1000 electronic flight deck caused them to halt shipments of the system until a resolution could be found... and it has.

Garmin contacted ANN earlier today and let us know that a solution for the G1000's GRS 77 issues was at hand. As a result, Garmin is resuming shipments of the GRS 77 AHRS (Attitude Heading Reference System) units used in G1000 installations as of today, Monday, August 20, 2007. All affected aircraft manufacturers will begin receiving GRS 77 units immediately so that they can resume aircraft deliveries. Production of the GRS 77 will increase incrementally as Garmin ramps up the production line.

Garmin ceased deliveries of the GRS 77 after observing a sudden increase in failure rates during aircraft manufacturer product flight tests. It has been determined that the increased failure rate was due to a production process change by a component supplier. Garmin has identified and isolated the suspect problematic components and is now validating components with additional testing.

Garmin tells ANN that they remain committed to providing customers with the industry's leading avionics suite, and will issue a Service Bulletin in the near future about those GRS 77 units in the serial number range listed on the 070816-00 Service Advisory. The Service Bulletin will provide instructions on how to have the affected units updated under warranty.