27-88-00
ALL ú ú 04 Page 104 ú Jul 12/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
K33593
A 737-300/400/500MAINTENANCE MANUAL
TROUBLE PROBABLE CAUSE ISOLATION PROCEDURE REMEDY
LE FLAPS TRANSIT LE flap or On slats 2 and 5, with
center panel light slat-extend or proximity sensors S164,
is on while leading full-extend S165, S178, and S179
edge surfaces are proximity sensor (part numbers
in-transit; or wiring 10-61226-21 or -28),
overhead measure the resistance
annunciator panel between sensor leads.
shows one or more The resistance from the
surfaces extended blue to the yellow leads,
with no associated must be 44 |2 ohms. The
TRANSIT lights. resistance from the red
to the yellow leads,
must be 44 |2 ohms.
On slats 1, 3, 4, and 6,
with proximity sensors
S162, S163, S166, S167,
S168, S169, S176, S177,
S180, S181, and
LE flaps 1 thru 4 with
proximity sensors S170,
S171, S172, and S173
(part no.'s 10-61226-15,
-26, or -29/1-899-29),
measure the resistance
between the sensor leads.
The resistance from the
blue to the yellow leads,
must be 348 |3.5 ohms.
The resistance from the
red to the yellow leads,
must be 30 |3 ohms.
Replace proximity sensor
as given in
AMM 27-88-11/401,
AMM 27-88-11/501, or
check sensor wiring for
open or short circuit.
Repair as necessary.
Troubleshooting Chart
Figure 101 (Sheet 4)
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27-88-00
ALL ú ú 04 Page 105 ú Jul 12/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
K33594
A 737-300/400/500MAINTENANCE MANUAL
TROUBLE PROBABLE CAUSE ISOLATION PROCEDURE REMEDY
indication. correct is on when leading extended; (TE flaps 10-40); annunciator shows overhead LE FLAPS TRANSIT center panel light edges are fully Failure in M229 module card A22. Replace M229 module. Refer to OHM 27-56-40 for test and repair. Suspect circuit
Troubleshooting Chart
Figure 101 (Sheet 5)
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27-88-00
ALL ú ú 02 Page 106 ú Jul 12/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
C98509
A 737-300/400/500MAINTENANCE MANUAL
TROUBLE PROBABLE CAUSE ISOLATION PROCEDURE REMEDY
normal annunciation overhead extended; edges are and LE FLAPS on when leading panel lights both EXTEND center LE FLAPS TRANSIT overhead (Cont) correct indication is on when leading extended; (TE flaps 10-40); annunciator shows LE FLAPS TRANSIT center panel light edges are fully ground between lamp and M229 Short circuit to M229 and Stall Failure in M229 Short circuit to ground between Warning Module module module wiring associated flaps 10-degree switch, S584, or Short circuit in trailing edge between D728B, pin 54 and to ground. S584, for a short circuit If LE FLAPS TRANSIT light still remains on, check wiring and connectors the P6-2 panel. circuit breaker, C211, on Open LE FLAP POSN IND-DC connector D728A, pin 55 exists, to ground. If continuity Check continuity from M229, If light remains on, check between light and M229 module for short circuit to ground. wiring and connectors ground. If continuity connector D728B, pin 54 to Check continuity from M229 exists, AMM 27-88-21/501. AMM 27-88-21/401, Repair or replace necessary. wiring as cards A22, A34. Replace M229 module. Refer to OHM 27-56-40 for test and repair. Suspect circuit necessary. repair wiring as Replace stall warning module or necessary. wiring as Repair or replace S584, as given in Adjust or replace
Troubleshooting Chart
Figure 101 (Sheet 6)
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：737-300 400 500 AMM 飞机维护手册 飞行操纵 FLIGHT CONTROLS 6(142)
