The ELT should be checked to make certain the unit has not been activated during the ground check.
Check by selecting 121.50 MHz on an operating receiver. If there is an oscillating chirping sound, the ELT may
have been activated and should be turned off immediately. This requires removal of the access cover and moving
the switch to OFF, then press the reset button and return the switch to ARM. Recheck with the
receiver to ascertain the transmitter is silent.
CCC CIR 11-2 OPERATION
On the unit itself is a three position selector switch placarded “OFF,” “ARM” and “ON.” The ARM
position is provided to set the unit to the automatic position so that it will transmit only after impact and will
continue to transmit until the battery is drained to depletion or until the switch is manually moved to the OFF
position. The ARM position is selected when the transmitter is installed at the factory and the switch should
remain in that position whenever the unit is installed in the airplane. The ON position is provided so the unit
can be used as a portable transmitter or in the event the automatic feature was not triggered by impact or to
periodically test the function of the transmitter.
Select the OFF position when changing the battery, when rearming the unit if it has been activated for
any reason, or to discontinue transmission.
NOTE
If the switch has been placed in the ON position for any reason, the
OFF position has to be selected before selecting ARM. If ARM is
selected directly from the ON position, the unit will continue to
transmit in the ARM position.
A pilot’s remote switch, located on the left side panel, is provided to allow the transmitter to be controlled
from inside the cabin. The pilot’s remote switch is placarded “ON,” “AUTO/ARM” and “OFF/RESET.” The
switch is normally left in the AUTO/ARM position. To turn the transmitter off, move the switch momentarily
to the OFF/RESET position. The aircraft master switch must be ON to turn the transmitter OFF. To actuate
the transmitter for tests or other reasons, move the switch upward to the ON position and leave it in that
position as long as transmission is desired.
The unit is equipped with a portable antenna to allow the locator to be removed from the aircraft in case
of an emergency and used as a portable signal transmitter.
The locator should be checked during the ground check to make certain the unit has not been accidentally
activated. Check by tuning a radio receiver to 121.50 MHz. If there is an oscillating sound, the locator may
have been activated and should be turned off immediately. Reset to the ARM position and check again to
insure against outside interference.
REPORT: VB-880
ISSUED: DECEMBER 16, 1976
7-24
REVISED: APRIL 13, 1979
SECTION 7
PIPER AIRCRAFT CORPORATION
DESCRIPTION AND OPERATION
PA-28-161, CHEROKEE WARRIOR II
Summary of Contents for CHEROKEE WARRIOR II
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