transformer. 3) Use the center ADC when you replace the center ADC transformer.
(b)
Make sure a dash (-) shows in the EXTERNAL SENSOR FAULT display on the front panel of the applicable air data computer.
(c)
Release the button on the front panel of the air data computer.
S 714-015
(11)
Do a test of the heater circuit of the total air temperature probe (AMM 30-31-00/501).
(12)
Remove electrical power if it is not necessary (AMM 24-22-00/201).
S 394-017
(13)
Install the sealant around the bottom of the total air temperature probe (AMM 51-31-01/201):
S 864-014
(a) Fill the empty space between the bottom of the probe and the fuselage with sealant.
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(b) Let the sealant dry until the sealant cannot be dented.
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ANGLE OF ATTACK SENSOR - REMOVAL/INSTALLATION
_____________________________________________
1. General_______
A. This subject contains two tasks. The first task is to remove an angle of attack sensor. The second task is to install an angle of attack sensor. The second task includes a test of the sensor installation.
B. The angle of attack sensors are installed on the left and right side of the fuselage at STA 290, WL 225. The removal and installation of the angle of attack sensor is the same for the left sensor or right sensor.
TASK 34-12-03-004-147
2. Angle of Attack Sensor Removal (Fig. 401)______________________________
A. Standard Tools and Equipment
(1) Sealant Removal Tool - hardwood or plastic
B. References
(1) 51-31-01/201, Seals and Sealing
C. Access
(1) Location Zones
211/212 Passenger Cabin Nose to First Door
D. Procedure
S 864-275
(1)
Make sure the two F/D switches on the MCP are in the OFF position.
S 864-168
(2)
Open these circuit breakers and attach DO-NOT-CLOSE tags:
(a) P7 Overhead Circuit Breaker Panel
1) 7A10 ADC L PWR
2) 7A12 AOA L
3) 7A13 AOA ALTN L
4) 7A14 ADC R PWR
5) 7A16 AOA R
6) 7A17 AOA ALTN R
7) 7J15 ADC C PWR
S 864-266
(3) Open these circuit breakers and attach DO-NOT-CLOSE tags:
(a) P6 Main Power Distribution Panel
1) 6C33 AOA HEAT L
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MAINTENANCE MANUAL
FUSELAGE SKIN
Angle of Attack Sensor - Removal/Installation
Figure 401
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