Ameri-King АК-451-Series User Manual

Page 18

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3.2

PERIODIC MAINTENANCE (INSTRUCTION FOR CONTINUED
AIRWORTHINESS FOR CANADIAN INSTALLATION:


REFERENCES:


Canadian Aviation Regulations CAR Standards: Part V – Airworthiness
Manual AWM 571: Appendix G.

PURPOSE:


Instructions for continued airworthiness, which shall include as a minimum, details of
approved batteries and sources of supply; battery replacement or recharge
instructions; battery capacity test procedures, if applicable; transmission or functional
test procedures; procedures necessary to accomplish the performance tests specified
in Chapter 571 Appendix G ; and for 406 MHz ELTs, instructions to verify the
aircraft 24 bit address or serialized protocol as applicable;

Appendix G

(a) Corrosion Inspection
(b) Operational Testing
(c) Performance Testing
(d) Battery Replacement and Recharging
(e) Shipping

IMPORTANT NOTES:

The ELT must be “performance tested within the 12 month period preceding
installation in an Aircraft and within 12 months intervals thereafter…”

The following Supplemental Installation and Periodic Maintenance
requirements must be complied with, when installing the Model AK-451 ELT in
Canadian Aircraft:

SUPPLEMENTAL INSTALLATION


Installation and maintenance of the ELT must comply with Transport Canada
Airworthiness Manual Chapter AWM 551.104 (f)(4) Transmitter Remote Control

A Placard shall be fabricated and installed near the Remote Unit which states:

FOR AVIATION EMERGENCY USE ONLY UNAUTHORIZED
OPERATION PROHIBITED

36

PERIODIC MAINTENANCE (at least every year)

Note:
* These tests should be performed only within an RF Screen Room or Facility
providing shielding of RF Emissions.
* Using of ELT Test set TS-451 or equivalent test equipment is acceptable

3.2.1

Regular Periodic Maintenance Test


Perform Periodic Maintenance Test per paragraph 3.1 above, including all Test
paragraphs 3.1.1 through 3.1.10.

In addition to the Periodic Maintenance requirements prescribed in Paragraph 3.1, the
following Performance Testing must be performed, at least every year, to comply
with Canadian Aviation Regulations CAR Standards: Part V – Airworthiness Manual
571: Appendix G.

3.2.2

Power Output Test, Performance Testing


NOTE: Using of ELT Test set TS-451 or equivalent test equipment is acceptable

3.2.2.1

121.5/243.0 MHz Power Output:


Connect the equipment as shown below:





Note:
Use as fresh battery pack (12.5 ± 0.5 VDC nominal) or a 2 amp, 12.5 VDC power
supply as power source.

The test equipment specified in the following steps is only a recommendation. The
use of other manufacturer's models of test equipment capable of providing equivalent
measurement results is acceptable.

Set the Spectrum Analyzer as follows:

Center freq: 121.5 MHz

Span: 1 MHz

Resolution bandwidth: 1 MHz

Vertical display: 10dB/Div

Sweep: Auto

Peak/Avg: Peak

Reference level: 30 dBm

Time/Div: 20ms

ELT BNC

(top)

Connector

Applicable

attenuator

Spectrum

Analyzer

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