E T X T S O L I T H I U M B A T T E R I E S
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Instructions for Continued Airworthiness (ICA)
The supplemental Instructions for Continued Airworthiness (ICA) are required by 14 CFR
part 23 for this Article (Part) installed on Aircraft (14 CFR 23.1529 for this application and
TSO).
The Battery Functions are considered Secondary within the electrical system for each of the
Classes of Airplanes shown in Figure 2 of AC 23.1309-1E. The alternator charging system is
considered Primary for this ICA. Per AC 23.1309-1E and reference TSO-C179b, the Failure
Condition Classification (FCC) for this TSO Battery is “Major”. For this ICA and Battery
there is no complex hardware or software. However, other installations may deem the
analysis lessor or greater, dependent on the function in the particular installation Aircraft.
ICA Revisions
Updates and/or revisions to the ICA will be available from the documentation section of the
EarthX Website:
www.earthxbatteries.com
. Customers will be notified of a change to the
ICA via the customer’s email of record.
Battery Maintenance Requirements
The ETX900-TSO battery is a maintenance free battery with no internal replaceable
components. No inspection or testing is required for the first 24 months after purchase.
Thereafter, an annual inspection is required to ensure that the battery functions as designed
and installed for safe operation of the aircraft.
The following inspections/tests shall be performed on an annual basis (after first 24-month
period), typically during the annual inspection:
1)
Visually inspect the battery for signs of damage; plastic case cracks, warped plastic or
long side of the battery is swollen.
2)
Verify the battery fault monitoring LED circuit is operational. To do this, use a
wire jumper to connect the battery’s fault output wire to battery ground (see figure
inset below), and verify that the battery’s internal fault LED is lit and that the
external fault LED and/or EFIS indicator (on the instrument panel) is lit or
indicating. Alternately, if the panel mount LED is equipped with a “Push to Test”
feature, it can be used in lieu of the wire jumper method described above.
