Diamond DA 42 NG, Maintenance Manual

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AIRCRAFT
DA 42 NG AMM Equipment/Furnishings
Doc # 7.02.15
Rev. 4
25-60-00
Page 1
15 Mar 2018
Section 25-60
Emergency Equipment
1. General
This Section tells you about the emergency equipment installed in the DA 42 NG airplane. It tells you
about the emergency location transmitter (ELT) and the first aid kit. Refer to the equipment
manufacturers manuals for more data.
Refer to Chapter 26 for data about the hand fire extinguisher which is installed in the cabin of the
DA 42 NG.
2. Description
Figure 1 shows the location of the main components of the ELT system.
The ELT is located in the rear fuselage, below the aft baggage compartment. A protective case
attached to a mounting bracket holds the ELT in position. The ELT antenna is mounted on the upper
surface of the fuselage, above the ELT. A remote control panel/indicator (RCPI) is mounted on the
instrument panel, right side.
The ELT transmits signals automatically after a crash on the emergency frequencies of 121.5 and
243.0 Megahertz (MHz). Every 50 seconds the transmitter also transmits a signal on the 406.025 MHz
frequency to a satellite. The signal to the satellite contains the serial number of the ELT transmitter or
the airplane ID, a country code and a unique identity code. The satellite will also give the emergency
services a more accurate location for the airplane.
The ELT has its own battery pack to supply electrical power. When the ELT is ON and transmitting the
batteries will keep the ELT transmitting for up to 72 hours on the 121.5 and 243.0 MHz frequencies
and for up to 24 hours on the 406.025 MHz frequency.
It is important to monitor the battery expiry dates for the battery pack. The expiry date for the battery
pack is shown on the identity plate for the transmitter. The battery pack must be replaced when:
)
After use in an emergency.
)
After the transmitter has been accidentally switched ON for an unknown period of time.
)
After 1 hour of accumulated use (testing).
)
On or before the battery pack expiry date.
You must do regular functional tests. Refer to the Maintenance Practices in this Section.