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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 S 825-548
 (15) Move the left AOA vane to -10 degrees with the angular displacement measuring tool.
 (a) Make sure the AOA on the bus reader is -10.36 to -9.64 degrees
 S 975-361
 (16)
 Make a record of the No. 2 left AOA vane value.

 S 865-E15

 (17)
 Close the 7A12 AOA L circuit breaker on the P7 panel.

 S 085-008

 (18)
 Disconnect the ARINC 429 bus reader from the L ADC front panel TEST ONLY connector.

 S 485-363

 (19)
 Install an angular displacement measuring tool on the right AOA vane.

 S 825-549

 (20)
 Move the right AOA vane to 0 degrees with the angular displacement measuring tool.

 S 485-365

 (21)
 Connect the ARINC 429 bus reader to the R ADC front panel TEST ONLY connector.

 S 865-336

 (22)
 Set the ARINC 429 bus reader to these parameters:

 Octal Label: 221
 SDI: 2 (Bit 10 = 1, Bit 9 = 0)
 Display: Engineering Units

 (a) Make sure the AOA on the bus reader is -0.36 to 0.36 degrees.
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL

 S 825-550
 (23) Move the right AOA vane to 10 degrees with the angular displacement measuring tool.
 (a)  Make sure the AOA on the bus reader is 9.64 to 10.36 degrees.
 S 825-551
 (24) Move the right AOA vane to -10 degrees with the angular displacement measuring tool.
 (a)  Make sure the AOA on the bus reader is -10.36 to -9.64 degrees
 S 975-366
 (25)
 Make a record of the No. 2 right AOA vane value.

 S 975-552

 (26)
 Make sure the No. 2 right AOA vane value is within 0.54 degrees of the No. 1 left AOA vane value.

 S 975-553

 (27)
 Make sure the No. 2 right AOA vane value is within 0.54 degrees of the No. 2 left AOA vane value.

 S 865-E18

 (28)
 Set the ARINC 429 bus reader to these parameters:

 Octal Label: 350
 SDI: 2 (Bit 10 = 1, Bit 9 = 0)
 Display: Binary

 (a)  Make sure bits 11 and 12 of label 350 are in the zero state.
 S 865-554
 (29) Open the 7A16 AOA R circuit breaker on the P7 panel.
 (a)  Make sure bit 11 of label 350 is in the zero state and bit 12 is in the one state.
 S 865-555
 (30)
 Open the 7A17 AOA ALTN R circuit breaker on the P7 panel.

 (a)  Make sure bit 11 of label 350 is in the one state.

 (31)
 Close the 7A17 ALTN AOA R circuit breaker on the P7 panel.

 S 825-556

 (32)
 Move the right AOA vane to 0 degrees with the angular displacement measuring tool.

 S 865-372
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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 ALL  ú ú 07 Page 512 ú Oct 10/94
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 S 865-374
 (33) Set the ARINC 429 bus reader to these parameters:
 Octal Label: 221
 SDI: 2 (Bit 10 = 1, Bit 9 = 0)
 Display: Engineering Units

 (a) Make sure the AOA on the bus reader is -0.36 to 0.36 degrees.
 S 825-557
 (34) Move the right AOA vane to 10 degrees with the angular displacement measuring tool.
 (a) Make sure the AOA on the bus reader is 9.64 to 10.36 degrees
　
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