(Continued)
CAPT Electrical System Panel, P18-3
Row Col Number Name
D 2 C00225 WINDOW HEAT CONTROL LEFT SIDE AC
D 3 C01071 HEATERS ALPHA VANE RIGHT
D 4 C00237 HEATERS ELEV PITOT RIGHT
D 5 C00525 HEATERS F/O PITOT
D 6 C00524 HEATERS AUX PITOT
E 1 C00224 WINDOW HEAT CONTROL LEFT FRONT AC
E 2 C00227 WINDOW HEAT CONTROL RIGHT SIDE AC
E. AOA Vane, Pitot, Elevator Pitot, Temperature Probes -Tryout
NOTE: This tryout is to make sure the AOA Vane, Pitot, Elevator Pitot, Temperature Probes is in a
zero energy state.
SUBTASK 30-31-00-210-001
(1) At the P5-9 Window/Pitot Heat Module do the following steps:
(a) Press the PROBE HEAT A switch to the ON position.
1) Make sure the CAPT PITOT, L ELEV PITOT, L ALPHA VANE, and TEMP PROBE
lights on the Window and Pitot Heat Module remain ON.
(b) Press the PROBE HEAT A switch to the OFF position.
(c) Press the PROBE HEAT B switch to the ON position.
1) Make sure the CAPT PITOT, L ELEV PITOT, L ALPHA VANE, and TEMP PROBE
lights on the Window and Pitot Heat Module remain ON.
(d) Press the PROBE HEAT B switch to the OFF position.
(e) Press the four WINDOW HEAT switches to the ON position one at a time.
1) Make sure the corresponding ON light on the Window and Pitot Heat Module
remains OFF.
2) Make sure the corresponding OVERHEAT light turns ON.
(f) Press all four WINDOW HEAT switches on the Window and Pitot Heat Module to the OFF
position.
END OF TASK
TASK 30-31-00-440-801
4. AOA Vane, Pitot, Elevator Pitot, Temperature Probes - Activation
(Figure 30-31-00-990-801)
A. General
(1) This procedure adds electrical power to the AOA Vane, Pitot, Elevator Pitot, Temperature
Probe systems.
B. References
Reference Title
30-31-00-990-801 Figure: Window/Pitot Heat Module (P/B 501)
C. Location Zones
Zone Area
113 Area Above and Outboard of Nose Landing Gear Wheel Well - Left
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
30-31-00
Page 203
D633A101-ILF Oct 15/2018
ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details
EFFECTIVITY
ILF ALL
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