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ALL ú ú C04A Page 216 ú Jul 12/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
~............................................................................... | LABEL 300 FLIGHT HISTORY BIT TABLE | ................................................................................. | ARINC 429 BITS | DEFINITION | ................................................................................. | | 0 0 0 1 | HPC VIBRATION | ................................................................................. | | 0 0 1 0 | LPT VIBRATION | ................................................................................. | | 0 0 1 1 | HPT VIBRATION | ................................................................................. | | 0 1 0 0 | N1 SPEED | ................................................................................. | | 0 1 0 1 | N2 SPEED | ................................................................................. | | 0 1 1 0 | FLIGHT DURATION | ............….................................................................... |BITS 19-28 | | | | ..................................... VIBRATION | DATA SPEED | TIME | | 28 27 26 25 24 23 22 21 20 19 | (SCALAR UNITS) | (% RPM) | (HOURS) | ................................................................................. | 0 0 0 0 0 0 0 0 0 0 | 0.00 | 0.0 | 0.0 | ................................................................................. | 0 0 0 0 0 0 0 0 0 1 | 0.01 | 1.0 | 0.1 | ................................................................................. | 0 0 0 0 0 0 0 0 1 0 | 0.02 | 2.0 | 0.2 | ................................................................................. | 0 0 0 0 0 0 0 1 0 0 | 0.04 | 4.0 | 0.4 | ................................................................................. | 0 0 0 0 0 0 1 0 0 0 | 0.08 | 8.0 | 0.8 | ................................................................................. | 0 0 0 0 0 1 0 0 0 0 | 0.16 | 16.0 | 1.6 | ................................................................................. | 0 0 0 0 1 0 0 0 0 0 | 0.32 | 32.0 | 3.2 | ................................................................................. | 0 0 0 1 0 0 0 0 0 0 | 0.64 | 64.0 | 6.4 | ................................................................................. | 0 0 1 0 0 0 0 0 0 0 | 1.28 | 128.0 | 12.8 | ................................................................................. | 0 1 0 0 0 0 0 0 0 0 | 2.56 | 256.0 | 25.6 | ................................................................................. | 1 0 0 0 0 0 0 0 0 0 | 5.12 | 512.0 | 51.2 | ......................................................…............…............. |BITS 29-31 | SIGN STATUS MATRIX (ALWAYS SET TO ZERO) | ................................................................................. |BIT 32 | PARITY BIT (THIS BIT ADDED TO BITS 1-31 | | | SO THE SUM IS ALWAYS ODD) | 2...................................…...........................................1
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77-31-00
ALL ú ú C03A Page 217 ú Jul 12/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
~........................................................................... | CONVERSION TABLE FROM HEXIDECIMAL TO BINARY | ............................................................................. | HEXIDECIMAL | BINARY | HEXIDECIMAL | BINARY | ............................................................................. | 0 | 0 0 0 0 | 8 | 1 0 0 0 | ............................................................................. | 1 | 0 0 0 1 | 9 | 1 0 0 1 | ............................................................................. | 2 | 0 0 1 0 | A | 1 0 1 0 | ............................................................................. | 3 | 0 0 1 1 | B | 1 0 1 1 | ............................................................................. | 4 | 0 1 0 0 | C | 1 1 0 0 | ............................................................................. | 5 | 0 1 0 1 | D | 1 1 0 1 | ............................................................................. | 6 | 0 1 1 0 | E | 1 1 1 0 | ............................................................................. | 7 | 0 1 1 1 | F | 1 1 1 1 | 2....................…................…....................…................1
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