31-26-00
 ALL  ú ú 01 Page 103 ú Mar 15/94
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
TROUBLE SYMPTOM  PROBABLE CAUSE  CORRECTIVE PROCEDURE 
. . takeoff position. speed brakes are in the The stabilizer, flaps and more than 33` above idle The thrust levers are set conditions occur: from the horn when all of these You hear an intermittent sound . . takeoff position. speed brakes are in the The stabilizer, flaps and more than 33` above idle The thrust levers are not set conditions occur: from the horn when all of these You hear an intermittent sound . The No. 2 thrust lever is set more than 33` above idle The stabilizer, flaps and speed brakes are not in the takeoff position. . You do not hear an intermittent sound from the horn when all of these conditions occur:  A failure in the A failure in the failure in the horn horn circuit or a control input to the A failure in the thrust lever switch or circuit circuit warning switch  paragraph 8. paragraph 7. Do the procedure in Do the procedure in Do the procedure in paragraph 6. 

EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 31-26-00
 ALL  ú ú 01 Page 104 ú Mar 15/94
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
3.  ______________________________________________________Flap/Landing Gear Fault Isolation/Corrective Procedure

EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 31-26-00
 ALL  ú ú 01 Page 105 ú Mar 15/94
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
4. Thrust Lever/Landing Gear Fault Isolation/Corrective Procedure

EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 31-26-00
 ALL  ú ú 01 Page 106 ú Mar 15/94
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
5. Engine No. 1 Thrust Lever Logic Fault Isolation/Corrective Procedure

EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 31-26-00
 ALL  ú ú 01 Page 107 ú Mar 15/94
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
6.
Engine No. 2 Thrust Lever Fault Isolation/Corrective Procedure

7.
Horn Circuit Fault Isolation/Corrective Procedure

YOU HEAR THE HORN - Replace the aural warning logic card, M989 (Ref 32-09-2X/ 401). If the problem continues, replace the aural warning device unit, M315 (WDM 31-26-01).
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 31-26-00
 ALL  ú
 ú  01  Page 108
 ú  Mar 15/94 

BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
8. Warning Switch Fault Isolation/Corrective Procedure

EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH PARKING BRAKE WARNING ú

 31-26-00
 ú ú 01 Page 109 ú Jul 15/97
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
8. Warning Switch Fault Isolation/Corrective Procedure
　
中國航空網(wǎng) www.k6050.com
航空翻譯 www.aviation.cn
本文鏈接地址：737-300 400 500 AMM 飛機(jī)維護(hù)手冊 儀表 INSTRUMENTS(129)