Technical data

13773-001
25-60
Page 2 30 Nov 2000
2. MAINTENANCE PRACTICES
A. Emergency Locator Transmitter (ELT)
(1) Removal - ELT
CAUTION: The quick release retaining straps which secure the ELT to the tray are slightly dif-
ferent size. The strap which fits around the front of the ELT transmitter is marked
FRONT. The strap which fits around the battery end of the ELT case, is marked
BATTERY.
(a) Remove carpet from baggage compartment floor. (Refer to 25-50)
(b) Remove access panel CB06. (Refer to 6-00)
(c) Move the main transmitter control switch (labeled ON-OFF-ARMED) to the “OFF” position.
(d) Disconnect transmitter RJ-11 plug from RJ-11 jack.
(e) Disconnect fixed antenna lead from front panel on ELT. Remove portable antenna.
(f) Unstrap transmitter and remove.
(2) Installation - ELT
WARNING:
The ELT must be mounted with the arrow (which is printed on the battery
case) pointing in the direction of flight.
(a) Install transmitter onto mounting plate with arrow on battery case pointing in direction of
flight.
Note: The quick release retaining straps which secure the ELT to the tray are
slightly different size. The strap which fits around the front of the ELT (trans-
mitter assembly) is marked FRONT. The strap which fits around the battery
case end of the ELT is marked BATTERY.
(b) Secure transmitter with straps.
(c) Connect fixed antenna lead to front of ELT. Secure portable antenna.
(d) Connect RJ-11 plug from transmitter to RJ-11 jack.
Note: After completing the mechanical installation of the ELT, the following tests
must be performed.
Note: Regulations require that transmitter tests only be done during the first five
minutes of each hour and must not last for more than three audio sweeps
(1.5 seconds). If you are at a location where there is an FAA control tower
or other monitoring facility, notify the facility before beginning the tests.
(e) Turn the squelch all the way down or to the OFF position.
(f) Monitor 121.5 Mhz using the aircraft COM receiver or a portable hand held receiver.
(g) Place the main switch on the front of the ELT unit in the ON position and verify that the
audio sweep tone can be heard on the COM radio.
(h) Place the main switch on the front of the ELT unit in the ARMED position. While seated at
the pilots normal operating position, press the ON button on the RCPI unit. Verify that the
red LED flashes and is readily visible from the pilots operating position.
(i) Verify that the audio sweep tone can be heard on the COM receiver. Push the RESET but-
ton on the RCPI unit. The LED should stop flashing and the audio sweep tone should stop.
(j) Install access panel CB06. (Refer to 6-00)