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MANAGEMENT YAW DAMPER COMPUTER
27-31-20
Page 502
Jun 10/2007
D633A101-GUN
BOEING PROPRIETARY - Copyright#Unpublished Work - See title page for details
(t) Make sure that the Captain’s control column shakes.
(u) Make sure that the following lights come on and stay on after a minimum of 20 to 60
seconds:
1) Left and right MASTER CAUTION lights on the P7 glareshield panel
2) FEEL DIFF PRESS light on the P5 forward overhead panel.
(v) Make sure that the message CMD REMOVED is shown on the SMYD BITE display after the
captain’s control column stops shaking.
NOTE: The FEEL DIFF PRESS light should go off.
(w) Press the master caution PUSH TO RESET light on the P7 glareshield panel.
(x) Make sure these lights go off:
1) Left MASTER CAUTION light on the P7 glareshield panel
2) Right MASTER CAUTION light on the P7 glareshield panel.
(y) Remove the safety tag and close this circuit breaker:
F/O Electrical System Panel, P6-1
Row Col Number Name
B 5 C01206 SMYD-2 CMPTR DC
SUBTASK 27-31-20-700-006
(2) Do the following steps to test the Elevator Feel Shift Module (EFSM) with the SMYD 2 energized:
(a) Open this circuit breaker and install safety tag:
CAPT Electrical System Panel, P18-2
Row Col Number Name
E 5 C01204 SMYD-1 CMPTR DC
(b) Press the ON/OFF button on the BITE panel on the front of SMYD number 2.
(c) Make sure EXISTING FAULTS? shows on the display.
(d) Press down arrow button until OTHER FUNCTIONS? shows on the display.
(e) Press YES button on the BITE panel on the front of SMYD number 2.
(f) Make sure SYSTEM CONFIG? shows on the display.
(g) Press down arrow button until SET OUTPUTS? shows on the display.
(h) Press YES button on the BITE panel on the front of SMYD number 2.
(i) Make sure SS CMD? shows on the display.
(j) Press YES button on the BITE panel on the front of SMYD number 2.
NOTE: SS ACTIVATE will show on the display and then REMOVE CMD? will show on the
display.
(k) Make sure that the First Officer’s control column shakes.
(l) After a minimum of 60 seconds, make sure the FEEL DIFF PRESS light on the P5 forward
overhead panel is not on.
(m) Make sure CMD REMOVED shows on the display after the First Officer’s control column
stops shaking.
(n) Press MENU button on the BITE panel on the front of SMYD number 2.
(o) Make sure SS CMD? shows on the display.
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
EFFECTIVITY
GUN ALL; AIRPLANES WITH ELEVATOR FEEL SHIFT
MODULE AND A 285A1010-4 OR SUBSEQUENT, STALL
MANAGEMENT YAW DAMPER COMPUTER
27-31-20
Page 503
Jun 10/2007
D633A101-GUN
BOEING PROPRIETARY - Copyright#Unpublished Work - See title page for details
(p) Press NO button on the BITE panel on the front of SMYD number 2.
(q) Make sure SS CMD & EFS CMD? shows on the display.
(r) Press YES button on the BITE panel on the front of SMYD number 2.
(s) Make sure SS & EFS ACTIVATE shows on the display before REMOVE CMD shows on the
display.
(t) Make sure that the First Officer’s control column shakes.
(u) Make sure that the following lights come on and stay on after a minimum of 20 to 60
seconds:
1) Left and right MASTER CAUTION lights on the P7 glareshield panel
2) FEEL DIFF PRESS light on the P5-3 forward overhead panel.
(v) Make sure that the message CMD REMOVED is shown on the SMYD BITE display after the
First Officer’s control column stops shaking.
NOTE: The FEEL DIFF PRESS light should go off.
(w) Push the master caution PUSH TO RESET on the P7 glareshield panel.
(x) Make sure these lights go off:
1) Left MASTER CAUTION light on the P7 glareshield panel
2) Right MASTER CAUTION light on the P7 glareshield panel.
(y) Remove the safety tag and close this circuit breaker:
CAPT Electrical System Panel, P18-2
Row Col Number Name
E 5 C01204 SMYD-1 CMPTR DC
(z) Press the ON/OFF button on the BITE panel on the front of SMYD number 2.
SUBTASK 27-31-20-700-007
(3) Make sure that these circuit breakers are closed:
CAPT Electrical System Panel, P18-2
Row Col Number Name
E 5 C01204 SMYD-1 CMPTR DC
F/O Electrical System Panel, P6-1
Row Col Number Name
B 5 C01206 SMYD-2 CMPTR DC
Do the following steps to test the Elevator Feel Shift Module (EFSM) with both SMYD1 and SMYD
2 energized:
NOTE: The following steps must be done to both SMYD1 and SMYD2 at the same time.
(a) Press the ON/OFF button on the BITE panel on the front of both SMYD 1 and SMYD 2.
(b) Make sure EXISTING FAULTS? show on both of the displays.
(c) Press down arrow buttons on both SMYDs until OTHER FUNCTIONS? shows on both
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737-600-700-800-900 AIRCRAFT MAINTENANCE MANUAL飞机维护手册3(41)
