Saab 340B, Руководство по эксплуатации

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EMERGENCY EQUIPMENT
Emergency Locator Transmitter
Aircraft Operations Manual
6/7.1
S3
PAGE 1
Apr 01/15
A/C 300 − UP or with Mod. No. 2204 installed.
1. GENERAL
The Emergency Locator Transmitter (ELT) facili-
tates search and rescue in case of a crash landing.
It activates automatically on impact, transmitting on
civil as well as military aeronautical distress fre-
quencies (121.5 and 243 MHz). As an option (Mod.
No. 3099), the ELT can be provided with a satellite
com card that will transmit aircraft identifications on
satellite frequency 406 MHz.
It is located aft of the cargo compartment, and is
removable from the aircraft.
2. DESCRIPTION
The ELT operates independent of the aircraft batter-
ies. It is waterproof, will float in water, is crash resis-
tant, and will normally be operative after a crash
landing.
At a 5 − 7 G nominal impact, the ELT automatically
activates, transmitting an emergency signal contain-
ing 2
− 4 down − sweep (1,600 − 300 Hz) signals per
second. The self − contained battery has a minimum
capacity of 52 hours of transmission.
There are two antennas: a permanent external on
the tail cone and a flexible antenna for portable ELT
use.
The ELT is controlled by an internal impact switch
and an ELT switch on the transmitter body. Remote
control of the ELT is possible by way of a three
−
position (ON − ARMED − RESET) switch on the cock-
pit overhead EMERGENCY panel.
3. OPERATION
Upon activation there is a time delay of 30 seconds
before the ELT starts to transmit. Activation is indi-
cated by a flashing red indicator on the ELT and on
the EMERGENCY panel.
3.1 Automatic activation
For normal operation, the ELT switch in cockpit
shall be positioned in ARMED position. The ELT will
then activate automatically on impact.
3.2 Manual activation
The ELT can be purposely activated by setting the
ELT switch in cockpit to ON.
3.3 Deactivation
The ELT can be deactivated in two ways should the
ELT be inadvertently activated;
− Gain access to the transmitter and set the ELT
ON/ARM
− OFF switch to OFF, and then back to
ON/ARM.
− On the cockpit EMERGENCY panel, momentarily
set the ELT switch to spring
− loaded RESET posi-
tion. To prevent unnecessary search − and rescue
actions, inform ATC immediately. Also, make an
entry in the aircraft log book.
− Portable operation
It is not normal procedure to bring the ELT along in
an evacuation. Should, however, circumstances
warrant the effort of removing the ELT, the portable
operation is the following:
− Gain access to the ELT through the access panel
aft of the cargo compartment.
− Set the ELT switch to OFF. If not the ELT will
start transmitting when removed from its mount-
ing bracket.
− Remove the ELT from its mounting bracket.
− Disconnect the antenna cable and the connector
from the remote selector circuit.
− Connect the flexible antenna to the ELT.
The ELT is now ready for portable use and will
transmit (after 30 sec.) whenever the ELT switch is
in the ON position.
For maximum radio range, the ELT should be lo-
cated as high as possible above the surrounding
terrain, e.g. on a hill top or in a tree. The antenna
should be oriented vertically.
At low temperatures, keep the transmitter inside
your jacket with the antenna outside.
IMPORTANT: To prevent unnecessary search − and
rescue actions, inform ATC immediately if the ELT
has been switched on inadvertently.