Piper Navajo PA-31 Service Manual page 901

ELT
SELECTOR
SWITCH
_
Figure 12-3. Communications Components ELT Schematic (Early)
PIPER NAVAJO SERVICE MANUAL
12-15. INADVERTENT ACTIVATION. The remote switch allows the pilot to turn off the transmitter
inadvertently activated by impact or improper switch selection. The pilot simply selects the momentary
OFF, RESET position. The transmitter shuts off and the spring loaded switch automatically returns to the
ARM position. The aircraft master switch must be ON to turn transmitter OFF with the remote switch.
Stopping inadvertent activation at the transmitter itself is accomplished in the following manner:
a. Improper switch selection is corrected by rotating the switch to the OFF position and then to the
ARM position.
b.
If the transmitter is inadvertently activated through impact, deactivate by pushing in on the
OFF/ARM/ON switch.
NOTE
As a routine precaution, it is recommended that the ELT battery
be replaced at the earliest opportunity after inadvertent activation
and a functional test be made in accordance with Paragraph 12-5.
Note, however, that the problem may not be in the transmitter.
Check the following:
1. Proper spacing of antennas so as to minimize antenna
conducted RF.
2. Rigidity of the transmitter installation.
CAUTION
Under normal conditions, the pilot's remote switch must be set to
ARM position.
C455
ARM
RESET
BUS
POSITION
LIGHTS
Reissued: 10/12/79
ELECTRONICS
5A19