AIRPLANE
OPERATIONS
MANUAL
NAVIGATION AND
COMMUNICATION
AUGUST 24, 2001
2-18-50
Page
1
Code
01
LIGHTNING SENSOR SYSTEM (LSS)
The P-880 Weather Radar Model may be optionally equipped with a
Lightning Sensor System (LSS). For additional information on functions
and operations, refer to the LSZ-850 Lightning Sensor System Pilot’s
Handbook.
The Lightning Sensor System is designed to detect and locate areas of
lightning activity, in a 100-nautical-mile radius around the aircraft, and
to give the operator a visual display of its position and rate-of-
occurrence on the MFDs.
The Lightning Sensor System is inhibited on the ground and during HF
transmission (HF PTT), being powered by one of the 28 V DC Avionics
Switched DC Buses. Should a power supply failure occur, the Lightning
Sensor System will be inoperative, as there is no backup power to it.
The Lightning Sensor System interfaces with other airplane systems
and equipment as follows:
− MFDs - The LSS provides lightning activity data to the MFDs.
− IC-600s - Signals between the LSS and the IC-600s are transmitted
through a Serial Data Bus.
LIGHTNING SENSOR SYSTEM SCHEMATIC