(c)  
NO. 1 NAVIGATION NO. 2 NAVIGATION VHF NAV-1 VOR/LOC VHF NAV-2 VOR/LOCATION VHF NAV-1 G/S VHF NAV-2 G/S RADIO ALTM-1 RADIO ALTM-2 MARKER BEACON

(d)  
AUTOPILOT
AIL FORCE LIMITER PWR

(GROUP A)  (GROUP B)
SYSTEM A AC  SYSTEM B AC
SYSTEM A DC  SYSTEM B DC
ENGAGE INTLK A  ENGAGE INTLK B
WARN LIGHT BAT A  WARN LIGHT BAT B
AUTOTHROTTLE DC
(21)
Ensure following systems are operational (Ref Chapter 34).

(a)
Attitude reference system

(b)
Compass System

(c)
VOR/ILS navigation system

(d)
Low range radio altimeter system

(e)
Air data computer system

(f)
Performance Data Computer (PDC) system

(22)
Position VERTICAL GYRO, COMPASS and VHF NAV transfer switches to NORMAL on P5 panel.

(23)
Tune VHF navigation receivers to a localizer test frequency and apply zero localizer and glide slope deviation signals.

(24)
Simulate 2000 feet radio altitude.

(25)
Place flaps up.

(26)
Place AFCS mode control panel controls to following positions:

(a)
A/P ENGAGE A and B switches to OFF.

(b)
F/D switches to OFF.

(c)
All other switches off.

(d)
HEADING and COURSE controls to airplane heading as read on associated HSI.

22-11-01 Feb 20/85 Page 504
BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.

(27)
Check that flight director command bars and FD (CMPTR) flags are out of view in both ADI’s and A/P OFF is annunciated on flight mode annunciators.

(28)
Verify that STAB OUT OF TRIM warning light illuminates when master LIGHTS test and dim switch on P2 panel is held in TEST position.

NOTE: For STAB OUT OF TRIM warning light removal/installation, refer to 33-11-82/201.
C.  Test Autopilot/Flight Director System
(1)  
Test A/P Engage and Warning Lights

(a)  
Move control column/wheel and return to detent noting pressure required to move control column/wheel.

(b)  
Place A/P ENGAGE A switch to CMD. Observe increased efforts to move control column/wheel and that CWS PITCH and CWS ROLL is annunciated on both FMAs.

(c)  
Press autopilot disengage button on captains control wheel. Check that autopilot disengages and controls column/wheel move freely. Observe autopilot-warning lights flash and aural warning sounds until disconnect but ton is pushed again.

(d)  
Repeat steps (b) and (c) using disconnect button on first officer's control wheel.

(e)  
Repeat steps (a) thru (d) using A/P ENGAGE B switch.

(f)  
Open circuit breakers listed under (Group B) in 2.B. (20)(d). Place A/P ENGAGE A switch to CMD. Check that pushbuttons on mode control panel are not illuminated.

(g)  
Open autopilot ENGAGE INTLK A circuit breaker. Observe autopilot disengages autopilot warning lights flash and aural warning sounds.

(h)  
Press A/P warning light on captain's FMA. Observe lights and aural warning go off.

(i)- Attempt to engage autopilot A. Observe that it is not possible to move A/P ENGAGE A switch from the OFF position. Close ENGAGE INTLK A circuit breaker.

(k)  
Close (Group B) circuit breakers and open (Group A) circuit beakers. Repeat steps (f) thru (j) using A/P ENGAGE B switch and ENGAGE INTLK B circuit breaker.

(l)  
Close (Group A) circuit breakers.

(2)  
Test F/D Circuit Breakers Interlocks

(a)  
Place both F/D switches to ON and press HDG SEL and ALT HOLD switch. Check that F/D command bars are in view and flag is out of view on both ADI's.

(b)  
Open AUTOPILOT SYSTEM A AC circuit breaker. Observe flight director command bars are out of view and flag is in view on captain's ADI.

(c)  
Close AUTOPILOT SYSTEM A circuit breaker. Reselect HDG SEL and ALT HOLD. Observe flight director command bars are in view and flag is out of view on captain's ADI.

(d)  
Open AUTOPILOT SYSTEM B circuit breaker. Observe flight director command bars are out of view and flag is in view on first officer's ADI.

(e)  
Close AUTOPILOT SYSTEM B circuit breaker. Reselect HDG SEL and ALT HOLD. Observe flight director command bars are in view and flag is out of view on first officer's ADI.

(f)  
Place STANDBY POWER switch to BAT. Check that captain's flight director command bars are out of view and flag is in view. Return STANDBY POWER switch to AUTO.

(3)  
Test A/P and F/D Vertical Gyro Transfer.

(a)  
　
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