* SEE THE WDM EQUIPMENT LIST
Standby Attitude Reference System - Component Index
Figure 101
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747-400 FAULT ISOLATION/MAINT MANUAL
P7 PANEL
P2 PANEL
117AL
STANDBY ATTITUDE/ILS P6 PANELSTATIC INVERTER/ INDICATOR, N138E1-3 ILS PROCESSOR, B339 SEE A
SEE B
FLIGHT COMPARTMENT
MAIN EQUIPMENT CENTER
ROLL SCALE
(REF) ROLL GYRO FAILURE
POINTER (REF) FLAG (REF)
GLIDE PATH (REF) DEVIATION BAR (REF) SCALE PITCH
GLIDE
PATH (REF) FLAG FAILURE LATERAL BAR (REF) DEVIATION
HORIZON BAR (REF)
FIXED AIRPLANE SYMBOL APP(REF)
OFF APP B/CRS
LATERAL FAILURE MODE SELECT FLAG (REF) QUICK CAGING (REF) KNOB (REF)
STANDBY ATTITUDE/ILS INDICATOR, N138 STATIC INVERTER/ILS PROCESSOR, B339
A B
Standby Attitude Reference System - Component LocationFigure 102
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747-400 MAINTENANCE MANUAL
STANDBY ATTITUDE REFERENCE SYSTEM - ADJUSTMENT/TEST
___________________________________________________
1. General_______
A. This procedure contains two tasks. The first task is for the operational test. The second task is for the system test. The operational test makes sure that the gyro, the glide path (G/P), and the lateral (LAT) deviation displays are serviceable. No ramp test equipment is necessary. The system test uses a ramp test set plus other navigation systems on the airplane. For a full system check, do each of the tests.
TASK 34-24-00-715-001
2. Operational Test - Standby Attitude Reference System____________________________________________________
A. Standard Tools and Equipment
(1) Stopwatch - Commercially Available
B. References
(1)
24-22-00/201, Electrical Power - Control
(2)
34-31-00/501, ILS Navigation System
(3)
AMM 45-10-00/501, Central Maintenance Computer System
C. Access
(1) Location Zones
221 Control Cabin, LH
D. Prepare for the test
S 865-002
(1)
Supply the electrical power (Ref 24-22-00/201).
S 865-003
(2)
Make sure these circuit breakers are closed:
(a)
P6 Main Power Distribution Panel
1) 6E19 FLT DK LIGHTS PANEL CAPT
2) 6E23 FLT DK LIGHTS PANEL F/O
3) 6L1 FLT DECK LIGHT STBY INST
(b)
P7 Overhead Circuit Breaker Panel
1) 7A6 NAV RADIO ILS L
2) 7B24 STBY INSTR ILS IND
3) 7B25 STBY INSTR ATTD IND
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747-400 MAINTENANCE MANUAL
E. Test Of The Standby Attitude Function
S 865-035
(1)
Permit sufficient time for the gyro to get to the usual speed of operation.
S 865-036 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：747-400 AMM 飞机维护手册 导航 NAVIGATION 2(14)
