Preparation for the Test
S 865-001-001
(1)
Supply electrical power (Ref 24-22-00/201).
S 865-002-001
(2)
Open these circuit breakers:
(a)
P6 Panel 1) AUTOSLAT 1 AC 2) AUTOSLAT NO. 1 DC 3) AUTOSLAT 2 AC 4) AUTOSLAT NO. 2 DC
(b)
P18 Panel 1) STALL WARN ASYM MODE
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH DIGITAL STALL WARNING ú
27-32-00
COMPUTER P/N 65-52819 ú CONFIG 1 ú 02 Page 502 ú Mar 15/96
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
F. BITE Test
S 075-006-001
(1)
Erase the stall warning computer No. 1 fault memory:
(a)
Push and hold the START BITE switch on the front of stall warning computer No. 1.
(b)
Make sure that all lights on the computer come on for 2 to 4 seconds.
(c)
Look to see if one or more lights stays on after 4 seconds.
NOTE: If a light stays on after 4 seconds, the computer
____ memory holds a failure for that function. The light will go off after approximately 25 seconds.
(d) When one or more light starts to flash after 10 to 20 seconds, release the START BITE switch. The memory is now clear.
S 075-007-001
(2)
Erase the stall warning computer No. 2 fault memory:
(a)
Push and hold the START BITE switch on the front of stall warning computer No. 2.
(b)
Make sure that all lights on the computer come on for 2 to 4 seconds.
(c)
Look to see if one or more lights stays on after 4 seconds.
NOTE: If a light stays on after 4 seconds, the computer
____ memory holds a failure for that function. The light will go off after approximately 25 seconds.
(d) When one or more light starts to flash after 10 to 20 seconds, release the START BITE switch. The memory is now clear.
S 745-003-001
(3)
Do a BITE test for stall warning computer No. 1:
(a)
Push and hold the START BITE switch on the front of stall warning computer No. 1.
(b)
Make sure that all lights on the computer come on for 2 to 4 seconds.
(c)
Release the START BITE switch.
(d)
Look to see if one or more light stays on after 4 seconds.
NOTE: If a light stays on after 4 seconds, the computer
____ memory holds a real-time failure for that function.
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH DIGITAL STALL WARNING ú
27-32-00
COMPUTER P/N 65-52819 ú CONFIG 1 ú 01 Page 503 ú Nov 15/91
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
S 745-004-001
(4)
Do a BITE test for stall warning computer No. 2:
(a)
Push and hold the START BITE switch on the front of stall warning computer No. 2.
(b)
Make sure that all lights on the computer come on for 2 to 4 seconds.
(c)
Release the START BITE switch.
(d)
Look to see if one or more light stays on after 4 seconds.
NOTE: If a light stays on after 4 seconds, the computer
____ memory holds a real-time failure for that function.
G. Stall Warning Operation Test
S 715-005-001
(1)
Do a test of the stall warning system No. 1 operation:
(a)
Push and hold the STALL WARNING TEST NO. 1 switch on the stall warning test module (P5 overhead panel).
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