SUPPLEMENT SG-3
CHAPTER 05 – INSPECTION PROGRAM
The GRS 77 utilizes an Earth magnetic field model which is updated
once every five years. The update is expected to be available from
Garmin by July 1 of each of the following years: 2010, 2015, and every
five years thereafter, so long as the GRS 77 remains a Garmin-
supported product.
Table herein reported shows the maintenance tasks performed at defined inter-
vals to retain the Garmin IFDS installation in a serviceable condition by system-
atic inspection and maintenance. These tasks are additional with respect to those
reported on Chapter 05 of the basic AMM.
The inspection program consists of individual inspections performed at the indi-
cated frequency: make reference to Chapter 05-20 of the basic AMM for fre-
quency intervals explanation.
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