JA44-001 High Impedance Headset to Low Impedance Intercom Adapter
Installation and Operating Manual
Rev A
Page B2
B1
Airworthiness Approval
Airworthiness approval of the JA44-001 may require completion of a TCCA Major Modification Report per CAR STD
(AWM) 571 Appendix L, or a FAA Form 337. The sample wording for a description of the work is provided to assist
the Installing Agency in preparing Instructions for Continued Airworthiness (ICA) when replacing an existing audio
panel with a Jupiter Avionics JA44-001 High Impedance Headset to Low Impedance Intercom Adapter. This sample
may be modified appropriately for new installations. It is the installer’s responsibility to determine the applicability of
the method used. Installations performed outside Canada must follow the applicable aviation authority’s regulations.
Sample Wording:
Removed the existing [model] audio panel and replaced with a Jupiter Avionics JA44-001 High Impedance Headset to
Low Impedance Intercom Adapter in [aircraft location].
See Section 1 of the JA44-001 Installation Manual.
Installed in accordance with the JA44-001 Installation Manual, Revision [ ], and AC 43.13-2, Chapters 2, and 3.
The JA44-001 interfaces with existing aircraft systems per the Installation Manual instructions.
The JA44-001 Installation Manual provides detailed installation instructions and wiring diagrams (Section 2, and
Appendices A and B).
Power is supplied to the JA44-001 through an existing [ ]-Amp circuit breaker that was previously used by the original
audio panel. The net electrical load is unchanged.
Aircraft equipment list, weights and balance amended. Compass compensation checked and found to conform to
applicable regulations.
B2
Instructions for Continued Airworthiness
Maintenance of the JA44-001 High Impedance Headset to Low Impedance Intercom Adapter is “on condition” only.
Refer to the JA44-001 Maintenance Manual. Periodic maintenance of the JA44-001 is not required.
The following sample Instructions for Continued Airworthiness (ICA) provides assistance in preparing ICA for the
Jupiter Avionics JA44-001 unit installation as part of a Type Certificate (TC) or Supplemental Type Certificate (STC)
project to comply with CAR STD (AWM) 523/527/525/529.1529 or FAR 23/25/27/29.1529 “Instructions for Continued
Airworthiness”.
Items that may vary by aircraft make and model are shown in brackets (“[ ]”) and should be filled in as appropriate.
Some of the checklist items do not apply, in which case they should be marked “N/A” (Not Applicable).
Instructions for Continued Airworthiness, Jupiter Avionics JA44-001 High
Impedance Headset to Low Impedance Intercom Adapter in an [Aircraft Make
and Model]
1. Introduction
[Aircraft that has been altered: Registration number, Make, Model and Serial Number]
Content, Scope, Purpose and Arrangement
: This document identifies the Instructions for Continued
Airworthiness for a Jupiter Avionics JA44-001 installed in an [aircraft make and model].
Applicability
: Applies to a Jupiter Avionics JA44-001 installed in an [aircraft make and model].
Definitions/Abbreviations
: None, N/A.
Precautions
: None, N/A.
Units of Measurement
: None, N/A.
Referenced Publications
: JA44-001 Installation and Operating Manual
JA44-001Maintenance Manual
STC/TC # [applicable STC/TC number for the specific aircraft installation]
Distribution
: This document should be a permanent aircraft record.
