ARTEX PRODUCTS / ACR ELECTRONICS, INC
DESCRIPTION, OPERATION, INSTALLATION AND MAINTENANCE MANUAL
C406-2 (453-5000), C406-2HM (453-5001)
570-5000 Rev. U
Company Confidential
25-62-11
Page 41 of 66
TASK 25-62-11-450-801
2.
Mounting Tray
SUBTASK 25-62-11-450-001
A.
Location
CAUTION:
MANY ORIGINAL ELT INSTALLATIONS ARE INADEQUATE AS FAR AS UNIT
LOCATION AND SURFACE RIGIDITY ARE CONCERNED. BECAUSE OF THE CRITICAL
FUNCTION AN ELT PERFORMS, IT IS IMPORTANT THE INSTALLATION FOLLOWS
THE INSTRUCTIONS AND RECOMMENDATIONS HEREIN.
CAUTION:
THE MOUNTING SURFACE MUST BE EXTREMELY RIGID; THEREFORE, MOUNTING
AN ELT DIRECTLY TO THE AIRCRAFT SKIN IS UNACCEPTABLE. MOUNTING THE ELT
DIRECTLY TO THE AIRCRAFT SKIN INDUCES “CRASH HIDING” VIBRATIONS AND
PROVIDES A VERY POOR MOUNTING SURFACE.
CAUTION:
AVOID LOCATING THE ELT WHERE IT WILL BE SUBJECTED TO UNPROTECTED
EXPOSURE TO HARSH CHEMICAL FLUIDS SUCH AS DEICING COMPOUNDS. THESE
TYPES OF CHEMICAL FLUIDS CAN PROMOTE CRACKING AND FRACTURING OF THE
ELT MOUNTING FRAME AND HOUSING COMPONENTS BY DEGRADING THE
STRUCTURAL INTEGRITY OF THESE COMPONENTS. THESE SAME CHEMICAL
AGENTS MAY ALSO CAUSE CORROSION OF ELECTRICAL CONNECTIONS.
1)
Select a suitable location for the ELT mounting tray. See Figure 14. Refer to these dimensions when
determining mounting location.
Figure 14 C406-2 Series ELT Outline and Dimensions
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.
