(g)  
Put a rectangular actuator on the sensor, S411 (alternate nose gear up sensor).

 (h)  
Make sure the CDU display of label 273/00 is shown as follows:

 (i)  
Condition - Gear Up and Unlocked

 ~.............................................. | Sensor and Bit Location | Bit State | ................................................ |Nose Gear Down/Lock on Bit 18 | 0 | ................................................ |Nose Gear Up/Lock on Bit 19 | 0 | 2.................................…............1

 (j)  
Remove the deactuator from the sensor, S424 (alternate nose gear lock sensor).

 (k)  
Make sure the CDU display of label 273/00 is shown as follows:

 (l)  
Condition - Gear Up and Locked

 ~.............................................. | Sensor and Bit Location | Bit State | ................................................ |Nose Gear Down/Lock on Bit 18 | 0 | ................................................ |Nose Gear Up/Lock on Bit 19 | 1 | 2.................................…............1

 (m)  
Remove the actuator from the sensor, S411 (alternate nose gear up sensor).

 S 745-060
 (6)  
Do a test of the body and wing gear, uplock and downlock, position indication:

 (a)  
Push the PREVIOUS PAGE key as necessary to show the logic condtions of label 272/00.

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 32-61-00
 ALL  ú ú 04 Page 536 ú Jun 18/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
 (b)

(c)

(d)

A
747-400 MAINTENANCE MANUAL
Make sure the CDU display of label 272/00 is shown as follows:
 ~............................................................ | Sensor and Bit Location | Bit State | Description | .............................................................. |L Body Gear Down/Lock on Bit 11 | 1 |GEAR DOWN | .............................................................. |L Wing Gear Down/Lock on Bit 12 | 1 |GEAR DOWN | .............................................................. |R Wing Gear Down/Lock on Bit 13 | 1 |GEAR DOWN | .............................................................. |R Body Gear Down/Lock on Bit 14 | 1 |GEAR DOWN | .............................................................. |L Body Gear Up/Lock on Bit 15 | 0 |NOT UP | .............................................................. |L Wing Gear Up/Lock on Bit 16 | 0 |NOT UP | .............................................................. |R Wing Gear Up/Lock on Bit 17 | 0 |NOT UP | .............................................................. |R Body Gear Up/Lock on Bit 18 | 0 |NOT UP | 2.................................…............….............1
Put a rectangular deactuator on the sensor, S415 (left wing
 gear down/lock sensor).
Make sure the CDU display of label 272/00 is shown as follows:

 ~............................................................ | Sensor and Bit Location | Bit State | Description | .............................................................. |L Body Gear Down/Lock on Bit 11 | 1 |GEAR DOWN | .............................................................. |L Wing Gear Down/Lock on Bit 12 | 0 |NOT DOWN | .............................................................. |R Wing Gear Down/Lock on Bit 13 | 1 |GEAR DOWN | .............................................................. |R Body Gear Down/Lock on Bit 14 | 1 |GEAR DOWN | .............................................................. |L Body Gear Up/Lock on Bit 15 | 0 |NOT UP | .............................................................. |L Wing Gear Up/Lock on Bit 16 | 0 |NOT UP | .............................................................. |R Wing Gear Up/Lock on Bit 17 | 0 |NOT UP | .............................................................. |R Body Gear Up/Lock on Bit 18 | 0 |NOT UP | 2.................................…............….............1
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 32-61-00
 ALL  ú ú 04 Page 537 ú Feb 10/97
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
　
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本文鏈接地址：747-400 AMM 飛機(jī)維護(hù)手冊(cè) 起落架 LANDING GEAR 9(44)