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tween the ELT and the cock pit panel
switch.
Brief the op erator(s) of the air craft on
the con tents of this “ELT In stal la tion
and Op er a tion Man ual” and dem on -
strate the de scribed tests. The man -
ual should be kept ei ther in the
air craft or with the air craft log books.
Make the ap pro pri ate log book en tries
and fill out and sub mit FAA Form
337. NOTE: The TSO ap proval of the
ELT does not con sti tute in stallation
ap proval. All ELT in stallations are
sub ject to field ap proval for a given
air frame by ei ther an ap proved FAA
DER or FSDO. For in stallations out -
side of the US, con tact your lo cal
civil avi ation authority rep re sen ta tive
for de tails.
WARNING
The signer of the FAA Form 337 is
re spon si ble for the ac curate and com -
plete in stallation of this ELT as de -
fined pre vi ously.
ARTEX AIRCRAFT SUPPLIES DOCUMENT #570-5060
03/22/04 PAGE 3-17
Additional in formation re gard ing the
completion of FAA Form 337 can be
found in Ad vi sory Cir cu lar AC
43.9-1E. Para graph h (2) of this ad vi -
sory cir cular de fines what is con sid -
ered to be ap proved data for ma jor
alterations as fol lows:
“Data used as a ba sis for ap proving
ma jor re pairs or al terations for re turn
to ser vice must be FAA-approved prior
to its use for that pur pose and in -
cludes: FAR (e.g., air worthiness di rec -
tives), AC’s (e.g., AC 43.13-1A un der
certain cir cumstances), TSO’s, parts
man u fac tur ing ap proval (PMA),
FAA-approved man ufacturer’s in struc -
tions, kits and ser vice hand books, type
certificate data sheets and air craft
specifications. Other forms of ap proved
data would be those ap proved by a
designated en gineering rep resentative
(DER), a man ufacturer hold ing a del e -
ga tion op tion au tho ri za tion (DOA),
STC’s and, with cer tain lim itations,
pre vi ous FAA field ap provals. Sup -
porting data such as stress anal yses,
test re ports, sketches, or pho tographs
should be sub mit ted with the FAA
Form 337. These sup port ing data will
be re turned to the ap pli cant by the
lo cal FAA dis trict of fice since only
FAA Form 337 is re tained as a part
of the air craft re cords at Oklahoma
City.”
3.6.7. Buzzer In stal la tion
A warn ing buzzer is re quired for TSO
C126 ap proval. The buzzer (p/n
130-4004), is pow ered by the ELT
unit and there fore is not de pend ent
upon the air craft bat tery for op er a tion.
It is not de signed to op er ate con tinu -
ously, but sounds at pre de ter mined
in ter vals, and runs for shorter pe riods
toward the end of bat tery life.
While the buzzer may be lo cated
any where on the air craft, it is rec om -
mended that the buzzer be placed
near the ELT unit, as it is loud
ARTEX AIRCRAFT SUPPLIES DOCUMENT #570-5060
03/22/04 PAGE 3-18
FIG URE 3-12 BUZZER BRACKET
enough to be heard out side the air -
craft when the en gine(s) is (are) off. It
is as sumed that if the en gine(s) is
(are) run ning then the cock pit light will
warn the pi lot. Placing the buzzer in
the cock pit is not rec om mended due
to the very dis tracting, loud, si ren-type
sound it pro duces when the ELT is
intentionally or in ad ver tently ac ti vated.
Since the buzzer op erates in tan dem
with the ELT cock pit switch panel
light, it would only serve as a re dun -
dant warn ing in dicator in the cock pit
en vi ron ment.
One way of mount ing the buzzer is to
fabricate a right an gle bracket us ing
.092 inch alu mi num as shown in Fig -
ure 3-12.
Wire the buzzer to the ELT as shown
in the wir ing di agram (Fig ure 3-10).
Connect the pos i tive (+) ter minal to
pin 14 of the ELT con nec tor and the
neg a tive (-) ter minal to pin 21
(ground).
3.7. Transmitter Test
1. Al ways per form the tests within
the first 5 min utes of the hour (UTC)
and be sure to no tify any nearby con -
trol tower of your in tentions. This is in
accordance with AC 43.13-1B, Sec tion
12-22, Note 3.
2. WARNING!
Do not al low test du ration to ex -
ceed 5 sec onds. The ELT will trans -
mit a “live” 406.028 MHz sig nal af ter
the ELT is ac tive ap prox i mately 47
seconds, the sat el lite sys tem con sid ers
the trans mission to be a valid dis tress
sig nal. Note: The fol lowing steps de -
scribe the ELT “self test”; a 406.028
MHz sig nal is trans mit ted by the ELT
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DESCRIP TION, OPERATION, INSTALLATION AND MAINTENANCE MANUAL(13)
