737-300 400 500 AMM 飞机维护手册 自动飞行 AUTOFLIGHT 2(93)

曝光台 注意防骗 网曝天猫店富美金盛家居专营店坑蒙拐骗欺诈消费者

 |  |  | solenoid.  |
 |  |  | 3. Do a wiring check to ground from D7377 pin 2 at  |
 |  |  | the Pressure Reducer Bypass Valve solenoid.  |
 |  |  | 4. Do a wiring check between D295 pin 51 and D737  |
 |  |  | pin 3 at the Pressure Reducer Bypass Valve.  |
 |  |  | 5. Do a wiring check between D295 pin 52 and D737  |
 |  |  | pin 2 at the Pressure Reducer Bypass Valve.  |
 |  |  | 6. Do a wiring check to ground from D737 pin 1 at the |
 |  |  | Pressure Reducer Bypass Valve.  |
 |  |  | 7. Inspect electrical connectors for bent or broken  |
 |  |  | pins, contamination, or damage.  |
 |  |  | 8. If the problem is not corrected, replace the  |
 |  |  | Pressure Reducer Bypass Valve (AMM 27-21-96/401).  |
 |  |  | 9. If the problem is not corrected, replace the  |
 |  |  | Yaw Damper Coupler (AMM 22-12-31/401).  |

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH 10-62253 ú

 22-12-01
 YAW DAMPER COUPLER  ú ú 02 Page 120 ú Jul 12/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
 ~............................................................................... | FAULT MESSAGE/CORRECTIVE ACTION (TABLE 101) | ................................................................................. | YDC Fault | YDC Fault | Corrective Action | | Message | Detail 1 | | .................................................................................
 | PR off  | msg. no.  | Possible Causes:  |
 | fault  | 22-21021  | 1. Low pressure in A System Hydraulics during YDC  |
 |  |  | Bite Pressure Reducer Test  |
 |  |  | 2. Pressure Reducer Bypass Valve  |
 |  |  | 3. Yaw Damper Coupler  |
 |  |  |  |
 |  |  | Corrective Action:  |
 |  |  | 1. Make sure that the resistance between D295 pin 31  |
 |  |  | to ground is between 50 to 80 ohms.  |
 |  |  | 2. Do a wiring check between D295 pin 31 and D7377  |
 |  |  | pin 1 at the Pressure Reducer Bypass Valve  |
 |  |  | solenoid.  |
 |  |  | 3. Do a wiring check to ground from D7377 pin 2 at  |
 |  |  | the Pressure Reducer Bypass Valve solenoid.  |
 |  |  | 4. Do a wiring check between D295 pin 51 and D737  |
 |  |  | pin 3 at the Pressure Reducer Bypass Valve.  |
 |  |  | 5. Do a wiring check between D295 pin 52 and D737  |
 |  |  | pin 2 at the Pressure Reducer Bypass Valve.  |
 |  |  | 6. Do a wiring check to ground from D737 pin 1 at the |
 |  |  | Pressure Reducer Bypass Valve.  |
 |  |  | 7. Inspect electrical connectors for bent or broken  |
 |  |  | pins, contamination, or damage.  |
 |  |  | 8. If the problem is not corrected, replace the  |
 |  |  | Pressure Reducer Bypass Valve (AMM 27-21-96/401).  |
 |  |  | 9. If the problem is not corrected, replace the  |
 |  |  | Yaw Damper Coupler (AMM 22-12-31/401).  |

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH 10-62253 ú

 22-12-01
 YAW DAMPER COUPLER  ú ú 02 Page 121 ú Jul 12/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
 ~............................................................................... | FAULT MESSAGE/CORRECTIVE ACTION (TABLE 101) | ................................................................................. | YDC Fault | YDC Fault | Corrective Action | | Message | Detail 1 | | .................................................................................
　
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 自动飞行 AUTOFLIGHT 2(93)