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ing, and im proper op er a tion.
NOTE: All ref er ences to main tenance re -
quirements for the United States shall
also ap ply to all ELT us ers out side of the
US un less oth er wise re quired by the in -
staller / air craft main te nance pro cedures
or the rel e vant na tional reg ulations.
4.2. In Can ada
WHY? To en sure con tinued re li abil ity of
your ELT it must be in spected for dam -
age and wear which could be caused by
age, ex posed el ements, vi bra tion, etc.
Even the best de signed equip ment, if not
prop erly main tained and cared for, will
even tu ally fail.
HOW OFTEN? At least once ev ery
year, un less re quired more fre quently by
CAR’s. Con tact Trans port Can ada for
ques tions re gard ing the CAR’s.
IS IT RE QUIRED? Yes. For Ca nadian
in stal la tions, all main tenance shall be per -
formed in ac cor dance with CAR’s Part V,
Subpart 71 and Part VI, Subpart 5. (CAR
571 Ap pen dix G).
HOW DE TAILED? The same ref er ence
quoted above states five es sen tial tests:
(1) The mea sured peak power af ter 3
min utes of op er a tion;
(2) The mea sured fre quency af ter 3
min utes of op er a tion;
(3) The au dio mod ulation, which shall
be rec og niz able as a typ i cal ELT sig nal;
(4) The mea sured cur rent draw in the
“OFF” (ARM) po si tion and in the “ON”
position as spec i fied by the ELT man u -
fac turer; and
(5) The au to matic ac ti va tion sys tem.
4.3. Pe ri odic Main te nance
In spec tion Pro cedure
To com ply with the above quoted FAA
& Ca nadian Avi a tion Reg u la tions, ARTEX
Air craft Sup plies pro vides the fol lowing
maintenance pro ce dures (see Fig ure 4-1
“Pe ri odic Main te nance In spection Check
list”). These pro cedures in clude checks
ARTEX AIRCRAFT SUPPLIES DOCUMENT # 570-5060
03/22/04 PAGE 4-2
ARTEX AIRCRAFT SUPPLIES DOCUMENT # 570-5060
05/12/03 PAGE 4-3
STEPS 5a THROUGH 5i ARE MAN DATORY IN CANADA
STEP 1 - Re move Co axial and Wiring Con nec tions and In spect............
STEP 2 - Re move ELT and In spect Mount ing Hard ware..........................
STEP 3a - Re move ELT Bat tery Pack and In spect........................................
STEP 3b - Re place/Re in stall Bat tery Pack........................................................
STEP 4 - Ac ti vate Using “Foot ball Throw” Method: Then Re set...............
STEP 5a - Ac ti vate ELT in At ten u ating Con tainer..........................................
STEP 5b - Mea sure 121.5 & 243.0 MHz Power Out put...............................
STEP 5c - Mea sure 121.5 MHz ELT Fre quency.............................................
STEP 5d - Lis ten to the Au dio Mod u la tion......................................................
STEP 5e - Mea sure 406.028 MHz Power Out put............................................
STEP 5f - Mea sure 406.028 MHz Fre quency.................................................
STEP 5g - Cur rent Draw Tests..........................................................................
STEP 5h - Ver i fi ca tion of Dig i tal Mes sage........................................................
STEP 5i - “Re set” ELT.........................................................................................
STEP 6 - Re in stall ELT......................................................................................
STEP 7 - Per form Trans mitter Tests...............................................................
STEP 8 - Per form An tenna Tests....................................................................
STEP 9 - Log book En try...................................................................................
FIG URE 4-1 PE RI ODIC MAIN TENANCE CHECK LIST
NOTE: FAR 91.207(d) requires that the ELT be inspected within 12 calendar months after the last
inspection for -
1. Proper installation
2. Battery corrosion
3. Operation of controls and crash sensor
4. The presence of a sufficient signal radiated from its antenna (See 4.3.17
[Step 8] Antenna Test)
which are man datory in Can ada. FAR
91.207(d) states those in spection checks
required in the United States. In ad dition
to the main tenance checks de scribed in
this chap ter a monthly “self test” of the
ELT is rec om mended. Please re fer to
Section 3.7, page 3-19 of this man ual for
more in formation.
Note: the step num bers (i.e. Step 1,
Step 2, etc.) which fol low cor re spond to
those listed in Fig ure 4-1.
4.3.1 (Step 1) Re move ELT
Con nec tions
Loosen the thumb screws on the end
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DESCRIP TION, OPERATION, INSTALLATION AND MAINTENANCE MANUAL(16)
