Elta 01N65900, User Handbook Manual

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USER’S HANDBOOK
Page 25
Oct 11/07
Note: With this ELT model the fixation holes are part of the case. No additional bracket is required.
The presented four possible solutions of the Activation/Identification module on the top of the ELT
transmitter installation are suitable for A/C operation and are in accordance with EUROCAE ED-62 & RTCA
DO-204/183 specifications. These solutions will ease the installation of the ELT transmitter especially for
retrofit application.
For Helicopter installation the operator must verify with the local Airworthiness Authority for specific
installation instructions.Usually for the helicopter installation we recommend a 45° down inclination (ELT
Activation/Identification module direction indicated “AIRCRAFT FRONT”) in order to take into account both
axis X (translation) and Z (vertical).
After correct installation of the Activation/Identification module, it shall be attached to the A/C by means of
the metalic strap in order to keep on board A/C the Cospas-Sarsat identification information related to the
installed ELT. So these information will remain in the A/C upon transmitter exchange (for overhaul process
as exemple).
Unstowed objects must be not able to impact the beacon.
Attach the beacon to the fuselage of the aircraft by means of four M4 bolts. Four 5 mm diameter holes at
the corners of a 210 mm x 45 mm rectangle are drilled in the beacon. Particular care must be taken with
this attachment. Standard industry means must be used to lock the screws. Use flat washer in order to
avoid paint damage.
CAUTION : This ELT shall be fixed on the primary A/C structure for correct G-Switch operation
during the crash.
The Figure 6 shows the drilling pattern dimensions and determine the required area to access to the
beacon controls and connectors.
Installation of the ELT ADT 406² AF / AP - Drilling Pattern Dimensions
Figure 6