INSTALLATION MANUAL OPERATION MANUAL
KANNAD 406 AP-H
PAGE 204
JUL 24/2013
B. Bracket installation
• Determine the location of the ELT on board according to FAR/RTCA
recommendations.
• The G-Switch axis shall be directed to sense the primary crash pulse along
the longitudinal axis of the aircraft. Reference to the G-Switch is given by
the arrow "Sens du Déplacement / Flight direction".
Figure 202: KANNAD 406 AP-H, installation
IMPORTANT: The KANNAD 406 AP-H is designed to be installed on board
helicopters only.
The "Direction of Flight " arrow shall point towards the front or the bottom of the
helicopter (and not pointing 45° downwards) with maximum tolerance of 15°:
• If the KANNAD 406 AP-H is installed with the "Direction of Flight " arrow
pointing towards the front of the helicopter, the ELT shall be mounted with
the upper side pointing towards the top of the helicopter.
• If the KANNAD 406 AP-H is installed with the "Direction of Flight " arrow
pointing towards the bottom of the helicopter, the ELT shall be installed
with the lower side pointing towards the front of the helicopter.
Drill 4 holes Ø 6 mm in the aircraft structure according to "Drilling mask". Holes
4,5,6,7 shall be preferred.
If the aircraft structure is not solid enough to withstand a 500 kg traction on the
bracket, a reinforcement plate (not supplied) should be installed as shown
Figure 203: Bracket installation
Fix the bracket with the 4 screws, 8 washers and 4 nylstop nuts supplied.
IMPORTANT: tighten to a torque between 4 and 5 Newton x meter.
