S 745-072

 (7)  
Do the pitch sensor check:

 (a)  For test 51.01 and test 51.11 make sure the stabilizer B
 dimension is within the limits shown on the CDU. Test 51.01 STAB POS (VAC) Limits: -0.07 to 0.07
 NOTE: Measure the stabilizer B dimension with the trammel bar
____
 or steel measurement tape.

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A
737-300/400/500MAINTENANCE MANUAL
 Test 51.02 MT ACT POS (VAC) Limits: -0.10 to 0.10 NOTE: The B side is not applicable for Test 51.02.
____ The CDU will show B=N/A on the B side. Test 51.03 ELEV POS (VAC) Limits: -0.54 to -0.42 The elevator T.E. must align with the index within |0.06
 inch.
 Test 51.04  NSS POS (VAC)  Limits:  -1.39 to -1.31
 Test 51.05  ELEV LVDT (VAC)  Limits:  -2.05 to -1.95
 Test 51.06  ELEV POS (VAC)  Limits:  -0.54 to -0.42

 The elevator T.E. must align with the index within |0.06 inch.
 Test 51.07  ELEV POS (VAC)  Limits:  -0.54 to -0.42
 Test 51.08  ELEV POS (VAC)  Limits:  -0.54 to -0.42
 Test 51.09  ELEV POS (VAC)  Limits:  -0.54 to -0.42
 Test 51.10  ELEV POS (VAC)  Limits:  -0.54 to -0.42
 Test 51.11  STAB POS (VAC)  Limits:  3.73 to 4.56

 NOTE: Measure the stabilizer B dimension with the trammel bar
____
 or steel measurement tape. Test 51.12 ELEV LVDT (VAC) Limits: -0.06 to 0.06 Test 51.13 ELEV POS (VAC) Limits: -0.10 to 0.10 Test 51.14 NSS POS (VAC) Limits: -0.25 to 0.25
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
 S 745-071
 (8)  Do the pitch single authority check:
 (a)  
Push the LSK adjacent to <CONTINUE.

 (b)  
Set Up the Feel System Condition II as follows:

 Test 51.20  Set the pitot pressure to 1.30 |0.05 PSIG = 231.5 |4.5 knots at sea level.

 (c)  
Use the CDU keyboard to put the code 100 into the scratchpad.

 (d)  
Push the LSK 6R.

 (e)  
Push the LSK adjacent to <CONTINUE.

 (f)  
Use the trammel bar or steel measurement tape to measure the stabilizer B dimension. Make sure that the stabilizer B dimension is set to 41.57 |0.01 inches.

 (g)  
Make sure that the values for the A side are in the limits shown on the CDU or in this section. Test 51.21 STAB POS (DEG) Limits: -0.21 to +0.21

 WARNING: MAKE SURE THAT PERSONS AND EQUIPMENT ARE CLEAR OF ALL
_______ CONTROL SURFACES BEFORE YOU SUPPLY HYDRAULIC POWER. AILERONS, RUDDER, ELEVATORS, FLAPS, SLATS, SPOILERS, LANDING GEAR, AND THRUST REVERSERS CAN MOVE QUICKLY WHEN YOU SUPPLY HYDRAULIC POWER. THIS CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
 (h)  
Pressurize the hydraulic system A (AMM 29-15-00/201).

 (i)  
Engage the autopilot channel A to CMD mode.

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 Test 51.22
Test 51.23

Test 51.24
Test 51.25

Test 51.26

A
737-300/400/500
MAINTENANCE MANUAL

ELEV POS (DEG) Limits: 1.60 to 2.40
SURF AUTH (DEG) Limits: -2.32 to 0.00
 (Manual measurement is not greater than 1.38

 inches.)
ELEV POS (DEG) Limits: 1.60 to 2.40
SURF AUTH (DEG) Limits: 0.00 to 2.25
 (Manual measurement is not greater than 1.34
　
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