Ameri-King AK-451-ELT - Manual (Page 17)

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The Main Unit features include:

ON / OFF / ARM Main Switch

Green ON Light

RESET Push Button Switch
The Remote Unit features include:

ON Push Button Switch

Green ON Light

RESET Push Button Switch.
All functions of the AK-451 are under micro-controller control. A self-test routine
checks ELT operation and installation, then presents the results as visual and auditory
'error code' to aid in troubleshooting and to indicate status. Software is approved per
requirements of RTCA/DO-178B for level D software.
The battery pack consists of four D-size lithium, and is field replaceable. Rated life is
5 years or one hour of use, whichever comes first, as specified by FAR 91.207(c).
Installation kits are available that contain all major components needed to install the
beacon.
1.2.2 Application and Equipment Limitation
This manual constitutes FAA approved data as described in AC 43.9-1F, paragraph
(h)(2) and AC 43-210, chapter 2, paragraph 201(a)(6) for major alterations. Not all
installations are “major”; consult your local FAA ACO for clarification.
In Canada, Installation of an ELT in an aeronautical product is carried out under a
Supplemental Type Certificate (STC). This is a separate regulatory requirement and
should therefore refer to Ameri-King Document No. ICA-451 for the Operations and
Instructions for Continued Airworthiness (ICA).
The conditions and tests required for TSO approval of this article are minimum
performance standards. It is the responsibility of those desiring to install this
article on a specific type or class of aircraft to determine that the aircraft
installation conditions are within the TSO standards. TSO articles must have
separate approval for installation in an aircraft. The article may be installed
only if further evaluation by the applicant documents an acceptable installation
and it is approved by the FAA Administrator. The article may be installed only
if performed under 14 CFR parts 43 or the applicable airworthiness
requirement. For installations outside of the US, contact your local civil aviation
authority for guidance (Ref. TSO-C126 paragraph D).
Lithium battery safety concerns include the possibility of fire, venting violently,
and venting of toxic gases (Ref. TSO-C126 paragraph 5.a.(2)).