ARTEX PRODUCTS / ACR ELECTRONICS, INC
DESCRIPTION, OPERATION, INSTALLATION AND MAINTENANCE MANUAL
C406-1 (453-5002), C406-1HM (453-5003)
Page 43 of 67
Feb 28/2019
25-62-10
2)
Locate the mounting tray such that the ELT mounting frame cap has at least 5 inches (127 mm) of
clearance for installation and removal.
3)
Mount the ELT as far aft as practical, but where it can be easily retrieved for maintenance.
NOTE: Statistics show that the tail section of an airplane is likely to be less damaged during a
crash; therefore, providing a good mounting environment for the ELT.
4)
Additional installation guidance may be found in AC 43.13-2, Chapter 2, Paragraph 28, which specifically
addresses ELT installations.
SUBTASK 25-62-10-450-002
B.
Installation
1)
See Figure 15.
Figure 15 Typical Mounting Tray Installation
2)
Install the necessary mounting structure as appropriate for the specific installation.
3)
Align the mounting tray (452-5050) on the mounting structure, such that the arrow on the tray is within
10° of the longitudinal axis of the aircraft and pointing in the direction of flight.
NOTE: Refer to TASK 25-62-10-410-803 on page 58 for guidelines on ELT orientation in a
helicopter.
4)
Mark the four holes needed for mounting the tray, using the tray as a pattern. The hole pattern is also
illustrated in Figure 14 on page 42.
5)
Drill the four mounting holes with a #19 or 4.25 mm drill.
6)
Install the mounting tray with the 8-
32 x 5/8” SS pan head Philips screws, flat washers, lock washers, and
nuts provided in the installation kit (455-7421), as shown in Figure 15 Typical Mounting Tray Installation.
NOTE: The use of substitute mounting hardware is acceptable provided the hardware used meets
or exceeds the strength and corrosion resistance of the original hardware.
a)
Torque to 12 ±1 lb-
in (136 ± 11 N•cm).