inches.)
SURF AUTH (DEG) Limits: 3.00 (Min)
 (Keep a record of the sum of the absolute

 values of the manual measurements taken in test

 51.23 and 51.25. The minimum total absolute value must be 1.78 inches.)
 NOTE: If the CDU displayed value is "*.**" the
____
 test passed.

 (j)  
Push the LSK adjacent to <YES from the second screen of the test 51.26.

 (k)  
Push the LSK adjacent to <CONTINUE on the tests 51.20 and 51.21 (on the CDU first screen) and keep the same pitot pressure and stabilizer B dimension.

 (l)  
Pressurize the hydraulic system A and B (AMM 29-15-00/201).

 (m)  
Engage the autopilot channel A.

 (n)  
Make sure that the values for the A side are in the limits as shown above or on the CDU display.

 (o)  
Do the tests 51.22 thru 51.26 for the A side.

 (p)  
Push the LSK adjacent to <YES on the CDU second screen of the test 51.26.

 (q)  
Push the LSK adjacent to <CONTINUE on the test 51.20 and 51.21 and keep the same pitot pressure and stabilizer B dimension.

 (r)  
Remove the pressure from the hydraulic system A (AMM 29-15-00/201).

 (s)  
Engage the autopilot channel B.

 (t)  
Make sure that the values for the B side are in the limits as shown above or on the CDU display.

 (u)  
Do the tests 51.22 thru 51.26 for the B side.

 (v)  
Push the LSK adjacent to <YES on the CDU second screen of the test 51.26.

 (w)  
Push the LSK adjacent to <CONTINUE on the tests 51.20 and 51.21 and keep the same pitot pressure and stabilizer B dimension.

 (x)  
Pressurize the hydraulic system A and B (AMM 29-15-00/201).

 (y)  
Engage the autopilot channel B to CMD mode.

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH EFIS ú

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
 (z) Make sure that the values for the B side are in the limits as
 shown above or on the CDU display. (aa) Do the tests 51.22 thru 51.26 for the B side. (ab) Push the LSK adjacent to <YES on the CDU second screen of the
 test 51.26. (ac) Set Up the Feel System Condition I as follows:
 Test 51.20  Reduce the pitot pressure to 0 PSIG, then set pitot pressure to 3.82 |0.05 PSIG = 386 |2 knots at sea level.
 (ad) Use the CDU keyboard to put the code 100 into the scratchpad.
 (ae) Push the LSK 6R.
 (af) Push the LSK adjacent to <CONTINUE.
 (ag) Make sure that the values for the A side are in the limits

 shown on the CDU or in this section.
 (ah) 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. Test 51.21 STAB POS (DEG) Limits: -0.21 to +0.21
 (ai) Engage the autopilot channel A. Test 51.22 ELEV POS (DEG) Limits: 1.60 to 2.40
 Test 51.23 SURF AUTH (DEG) Limits: -1.70 to 0.00
 (Manual measurement is not greater than 1.01 inches.)
 Test 51.24 ELEV POS (DEG) Limits: 1.60 to 2.40
 Test 51.25 SURF AUTH (DEG) Limits: 0.00 to 1.70
 (Manual measurement is not greater than 1.01 inches.)
 Test 51.26 SURF AUTH (DEG) Limits: 2.05 (Min)
 (Keep a record of the absolute values of the manual measurements taken in test 51.23 and
 51.25. The minimum total absolute value must be 1.22 inches.)
 NOTE: If the CDU displayed value is "*.**" the
____ test passed.
 (aj) Push the LSK adjacent to <YES on the CDU second screen of the test 51.26.
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH EFIS ú

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 ú ú 09 Page 555 ú Jul 12/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
 (ak) Set Up the Feel System Condition III as follows:
 Test 51.20  Reduce the pitot pressure to 0 PSIG, then set the pitot pressure to 1.30 |0.05 PSIG = 231.5 |4.5 knots at sea level.
　
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