User guide
Table Of Contents
- Record of Revisions
- Service Bulletin List
- List of Effective Pages
- Table of Contents
- List of Figures
- Introduction
- Description and Operation
- Test and Fault Isolation
- 1. Inspection and Test Regulatory Requirements
- 2. Inspection and Test Procedures
- A. Checklist
- B. Preparation
- C. Coax Cable and Wiring Connections Inspection – Item 1
- D. Mounting Tray and Hardware Inspection – Item 2
- E. Battery Pack Inspection – Item 3
- F. G-Switch Functional Check – Item 4
- G. Performance Testing Setup
- H. 121.5 MHz Frequency Measurement – Item 5a
- I. Audio Modulation Check – Item 5b
- J. 121.5 MHz Power Output Measurement – Item 5c
- K. 406 MHz Frequency Measurement – Item 5d
- L. 406 MHz Power Output Measurement – Item 5e
- M. Current Draw Test – Item 5f
- N. Digital Message Verification – Item 5g
- O. ELT Reset Check – Item 5h
- P. Installed Transmitter Test – Item 6
- Q. Antenna Test – Item 7
- R. Inspection and Test Documentation – Item 8
- 3. Fault Isolation
- Removal
- Installation
- 1. Regulatory Requirements and Guidelines
- 2. Mounting Tray
- 3. Antenna
- 4. Remote Switch
- 5. Buzzer
- 6. Wiring
- A. General Considerations and Recommendations
- B. Remote Switch Harness Fabrication
- C. ELT D-Sub Plug Installation
- D. Cockpit Remote Switch 9-Pin Plug Installation
- E. Wiring Installation
- F. Antenna Connection
- G. Cockpit Remote Switch Power Connection
- H. Remote Switch Alternate Power Source
- I. Airframe Ground Connections
- J. Buzzer Connections
- K. Remote Switch Final Installation
- 7. ELT Installation
- 8. Battery Pack Installation
- 9. Helicopter Installations - Special Considerations
- Appendix A – ELT Registration
- Illustrated Parts List
25-62-30
Page 35 of 84
Jun 25/13
ARTEX PRODUCTS / ACR ELECTRONICS, INC
DESCRIPTION, OPERATION, INSTALLATION AND MAINTENANCE MANUAL
ME406 (453-6603), ME406HM (453-6604)
(6) Replace the battery pack if any of the following conditions are true:
(a) After use in an emergency;
(b) After an inadvertent activation of unknown duration;
(c) When the total of all known transmissions exceeds one hour; or
(d) On or before battery replacement (expiration) date.
SUBTASK 25-62-30-750-001
F. G-Switch Functional Check – Item 4
CAUTION
: A JUMPER IS REQUIRED TO PERFORM THIS CHECK. DUE TO THE POTENTIAL OF
PHYSICAL DAMAGE IF THE JUMPER IS IMPROPERLY INSTALLED, THIS STEP SHOULD
ONLY BE PERFORMED BY AN EXPERIENCED TECHNICIAN/MECHANIC.
(1) Reinstall the battery in accordance with SUBTASK 25-62-30-450-001 on page 71.
NOTE
: If tests 5a through 5h are going to be performed, the battery may be temporarily
installed with only two screws, located on a diagonal from each other.
(2) Perform this functional check within the first 5 minutes after the hour (UTC), as required by
AC 43.13-1, Chapter 12, § 12-22, Note 3.
(3) Notify any nearby control tower of your intentions.
(4) Install the 500-0079 ME406 G-Switch Loop Test Connector Fixture on the ELT receptacle or
jumper ELT receptacle pins 5 and 12.
NOTE
: The ELT cannot be activated using this procedure unless pins 5 and 12 on the ELT
receptacle are jumpered. See Figure 18 Metal Airframe Wiring Diagrams on page 59.
(5) Verify the ELT switch is in the “ARM” position.
(6) Monitor 121.5 MHz on an AM receiver.
(7) Activate the ELT by using a rapid forward (i.e., throwing) motion in the direction of the arrow
on the ELT label, followed by a rapid reversing action.
(8) Verify activation by listening for the aural sweep tone on the receiver.
(9) Reset the ELT by toggling the control switch to the “ON” position and then back to the “ARM”
position.
SUBTASK 25-62-30-750-002
G. Performance Testing Setup
NOTE
: The ELT software routine logs battery life in 30-second increments. A minimum of 30
seconds is added to the battery usage total each time the ELT is activated and de-activated.
If the ELT is left activated beyond the first 30 seconds, additional time is added in 30-
second increments.
NOTE
: Careful planning of the performance tests is necessary to avoid activating the ELT more
than necessary. Plan the performance testing in a manner that allows tests to be run