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TASK 27-21-00-700-817-002
11. Rudder Travel Test
A. General
(1) Use this test to make sure the rudder operates correctly.
B. References
Reference Title
27-21-00-800-801 Rudder Hydraulic System A, B, or Standby Pressurization (P/B 201)
27-21-00-840-801 Put the Rudder Hydraulic systems A, B, and Standby Back to the
Condition Before the Pressurization (P/B 201)
C. Location Zones
Zone Area
211 Flight Compartment - Left
212 Flight Compartment - Right
325 Vertical Fin - Rudder
D. Procedure
SUBTASK 27-21-00-860-112-002
WARNING: MAKE SURE THAT PERSONS AND EQUIPMENT ARE CLEAR OF ALL CONTROL
SURFACES BEFORE YOU SUPPLY HYDRAULIC POWER. AILERONS, RUDDER,
ELEVATORS, FLAPS, SPOILERS, SLATS, AND THRUST REVERSERS CAN MOVE
QUICKLY WHEN YOU SUPPLY HYDRAULIC POWER. THIS CAN CAUSE INJURY TO
PERSONS AND DAMAGE TO EQUIPMENT.
(1) Pressurize the rudder hydraulic systems A and B, do this task: Rudder Hydraulic System A, B,
or Standby Pressurization, TASK 27-21-00-800-801.
SUBTASK 27-21-00-730-020-002
(2) Do the test of the rudder travel test:
(a) Set the FLT CONTROL A switch to the ON position and FLT CONTROL B switch to the OFF
position.
(b) Set the captain’s and first officer’s rudder pedal adjustment cranks to the middle position.
(Figure 501)
(c) Make sure the rudder pedals are in the neutral position.
(d) Push and hold captain’s left pedal until it touches the forward quadrant stop.
1) Measure the rudder travel.
2) Make sure that the dimension is 26.97 in. (685.0 mm) ±0.91 in. (23.1 mm) (29.00 +/-
1.00 degrees) rudder trailing edge left.
3) Release the captain’s left pedal.
(e) Push and hold the captain’s right pedal until it touches the forward quadrant stop.
1) Measure the rudder travel.
2) Make sure that the dimension is 26.97 in. (685.0 mm) ±0.91 in. (23.1 mm) (29.00 +/-
1.00 degrees) rudder trailing edge right.
3) Release the captain’s right pedal.
(f) Set the FLT CONTROL B switch to the ON position and FLT CONTROL A switch to the OFF
position.
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
EFFECTIVITY
GUN 006-099, 101-122; GUN 001-005, 155-157, 201-999
POST SB 737-27-1253
27-21-00
Config 2
Page 556
Oct 10/2007
D633A101-GUN
BOEING PROPRIETARY - Copyright#Unpublished Work - See title page for details
(g) Push and hold captain’s left pedal until it touches the forward quadrant stop.
1) Measure the rudder travel.
2) Make sure that the dimension is 26.97 in. (685.0 mm) ±0.91 in. (23.1 mm) (29.00 +/-
1.00 degrees) rudder trailing edge left.
3) Release the captain’s left pedal.
(h) Push and hold the captain’s right pedal until it touches the forward quadrant stop.
1) Measure the rudder travel.
2) Make sure that the dimension is 26.97 in. (685.0 mm) ±0.91 in. (23.1 mm) (29.00 +/-
1.00 degrees) rudder trailing edge right.
3) Release the captain’s right pedal.
(i) Set the FLT CONTROL B switch to the STBY position.
(j) Push and hold captain’s left pedal until it touches the forward quadrant stop.
1) Measure the rudder travel.
2) Make sure that the dimension is 26.97 in. (685.0 mm) ±0.91 in. (23.1 mm) (29.00 +/-
1.00 degrees) rudder trailing edge left.
3) Release the captain’s left pedal.
(k) Push and hold the captain’s right pedal until it touches the forward quadrant stop.
1) Measure the rudder travel.
2) Make sure that the dimension is 26.97 in. (685.0 mm) ±0.91 in. (23.1 mm) (29.00 +/-
1.00 degrees) rudder trailing edge right.
3) Release the captain’s right pedal.
SUBTASK 27-21-00-860-113-002
(3) Do this task: Put the Rudder Hydraulic systems A, B, and Standby Back to the Condition
Before the Pressurization, TASK 27-21-00-840-801.
------------------------- END OF TASK ---------------------------
TASK 27-21-00-700-818-002
12. Standby Rudder Power Control Unit Deadband Test
A. General
(1) Use this test to make sure the standby rudder power control unit (PCU) is in the correct rigged
position.
B. References
Reference Title
27-21-00-800-801 Rudder Hydraulic System A, B, or Standby Pressurization (P/B 201)
27-21-00-840-801 Put the Rudder Hydraulic systems A, B, and Standby Back to the
Condition Before the Pressurization (P/B 201)
C. Location Zones
Zone Area
211 Flight Compartment - Left
212 Flight Compartment - Right
325 Vertical Fin - Rudder
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
EFFECTIVITY
GUN 006-099, 101-122; GUN 001-005, 155-157, 201-999
POST SB 737-27-1253
　
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