121
INSPECTION
A TSO-C91 ELT can be activated by using a quick rap with the palm. A TSO-C91a
ELT can be activated by using a rapid forward (throwing) motion coupled by a rapid
reversing action.
INSPECTION
Verify that the ELT is activated using a wattmeter, the airplane's VHF radio
communications receiver tuned to 121.5 MHz, or other means.
INSPECTION
Reinstall the ELT into its mount and verify the proper direction for crash activation.
Reconnect all cables. They should have some slack at each end and should be
properly secured to the airplane structure for support and protection.
INSPECTION
(4) The presence of a sufficient signal radiated from its antenna Activate the ELT
using the "on" or ELT "test" switch. A low-quality amplitude modulation (AM)
broadcast radio receiver should be used to determine if energy is being transmitted
from the antenna. (continue)
INSPECTION
When the antenna of the AM broadcast radio receiver (tuning dial on any setting) is
held about 6 inches from the activated ELT antenna, the ELT aural tone will be heard.
INSPECTION
Verify that all switches are properly labeled and positioned.
TEMPORARY REMOVAL
An aircraft [may be operated] during any period for which the transmitter has been
temporarily removed for inspection, repair, modification, or replacement, subject to
the following:
TEMPORARY REMOVAL
No person may operate the aircraft unless the aircraft records contain an entry which
includes the date of initial removal, the make, model, serial number, and reason for
removing the transmitter, and a placard located in view of the pilot to show "ELT not
installed."
TEMPORARY REMOVAL
No person may operate the aircraft more than 90 days after the ELT is initially
removed from the aircraft
FAA Part 43 Appendix D
(i) Each person performing an annual or 100-hour inspection shall inspect (where
applicable) the following components of the radio group:
(1) Radio and electronic equipment--for improper installation and insecure
mounting.
Summary of Contents for AK-451 Series
Page 23: ...23 Figure A Front view of ELT Figure B 3 D view of ELT ...
Page 32: ...32 Figure 3 Mounting Tray with Clamp Holder for ELT AF AP ...
Page 37: ...37 Figure 6 Whip Antenna Model AK 451 017 1B ...
Page 39: ...39 Figure 2 1 2 ELT with mounting tray holder and adapter tray ...
Page 42: ...42 Figure 7 1 Rod Antenna AK 451 017 2A 1 ...
Page 45: ...45 Figure 8 Blade Antenna AK 451 017 3A ...
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Page 51: ...51 Figure 11 Remote Audio Buzzer Monitor P N 451018 ...
Page 79: ...79 Figure 18 ELT Front Panels Main Unit and Remote Unit ...
Page 84: ...84 ELT S Top Label Figure 19 Automatic Portable ELT AP with integral antenna Survival ELT S ...
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Page 138: ...138 Table 1 List of all available Protocols ELT Non Location Protocols ...
Page 139: ...139 ELT Location Protocols User Location Protocols ...
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Page 223: ...223 Japan Civil Aviation Board Approval ...
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Page 230: ...230 APPENDIX K MATERIAL SAFETY DATA SHEET FOR BATTERY ...
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