.------------------------------------------------------------------------------.
| ------------   USER DEFINITIONS FOR TABLE-A TABLE-B TABLE D   -------------- |
|------------------------------------------------------------------------------|
| MNEMONIC | NUMBER | DESCRIPTION                                              |
|----------|--------|----------------------------------------------------------|
|          |        |                                                          |
| FN004254 | A49030 | MESSAGE TYPE 004-254  Canada ASDAR/ACARS                 |
|          |        |                                                          |
| ACID     | 001006 | AIRCRAFT FLIGHT NUMBER                                   |
| ACRN     | 001008 | AIRCRAFT REGISTRATION NUMBER (TAIL NUMBER)               |
|          |        |                                                          |
| TOST     | 002001 | TYPE OF STATION                                          |
| TIWM     | 002002 | TYPE OF INSTRUMENTATION FOR WIND MEASUREMENT             |
| PCAT     | 002005 | PRECISION OF TEMPERATURE OBSERVATION                     |
| ACNS     | 002061 | AIRCRAFT NAVIGATION SYSTEM                               |
| TADR     | 002062 | TYPE OF AIRCRAFT DATA RELAY SYSTEM                       |
| ROLQ     | 002064 | AIRCRAFT ROLL ANGLE QUALITY                              |
|          |        |                                                          |
| YEAR     | 004001 | YEAR                                                     |
| MNTH     | 004002 | MONTH                                                    |
| DAYS     | 004003 | DAY                                                      |
| HOUR     | 004004 | HOUR                                                     |
| MINU     | 004005 | MINUTE                                                   |
|          |        |                                                          |
| CLATH    | 005001 | LATITUDE (HIGH ACCURACY)                                 |
|          |        |                                                          |
| CLONH    | 006001 | LONGITUDE (HIGH ACCURACY)                                |
|          |        |                                                          |
| HMSL     | 007002 | HEIGHT OR ALTITUDE                                       |
| HEIT     | 007007 | HEIGHT                                                   |
|          |        |                                                          |
| POAF     | 008004 | PHASE OF AIRCRAFT FLIGHT                                 |
|          |        |                                                          |
| WDIR     | 011001 | WIND DIRECTION                                           |
| WSPD     | 011002 | WIND SPEED                                               |
| DGOT     | 011031 | DEGREE OF TURBULENCE                                     |
| HBOT     | 011032 | HEIGHT OF BASE OF TURBULENCE                             |
| HTOT     | 011033 | HEIGHT OF TOP OF TURBULENCE                              |
| MDEVG    | 011036 | MAXIMUM DERIVED EQUIVALENT VERTICAL GUST SPEED           |
| PTRB     | 011076 | PEAK TURBULENCE INTENSITY                                |
|          |        |                                                          |
| TMDBST   | 012001 | TEMPERATURE/DRY BULB TEMPERATURE                         |
|          |        |                                                          |
| AFIC     | 020041 | AIRFRAME ICING                                           |
|          |        |                                                          |
|------------------------------------------------------------------------------|
| MNEMONIC | SEQUENCE                                                          |
|----------|-------------------------------------------------------------------|
|          |                                                                   |
| FN004254 | ACID  ACNS  YEAR  MNTH  DAYS  HOUR  MINU  CLATH  CLONH  POAF      |
| FN004254 | HMSL  TMDBST  WDIR  WSPD  DGOT  HBOT  HTOT  AFIC                  |
| FN004254 | HEIT  MDEVG   PTRB  ACRN  PCAT  TADR  ROLQ                        |
|          |                                                                   |
|------------------------------------------------------------------------------|
| MNEMONIC | SCAL | REFERENCE   | BIT | UNITS                    |-------------|
|----------|------|-------------|-----|--------------------------|-------------|
|          |      |             |     |                          |-------------|
| ACID     |    0 |           0 |  64 | CCITT IA5                |-------------|
| ACRN     |    0 |           0 |  64 | CCITT IA5                |-------------|
|          |      |             |     |                          |-------------|
| TOST     |    0 |           0 |   2 | CODE TABLE               |-------------|
| TIWM     |    0 |           0 |   4 | FLAG TABLE               |-------------|
| PCAT     |    2 |           0 |   7 | DEGREES KELVIN           |-------------|
| ACNS     |    0 |           0 |   3 | CODE TABLE               |-------------|
| TADR     |    0 |           0 |   4 | CODE TABLE               |-------------|
| ROLQ     |    0 |           0 |   2 | CODE TABLE               |-------------|
|          |      |             |     |                          |-------------|
| YEAR     |    0 |           0 |  12 | YEAR                     |-------------|
| MNTH     |    0 |           0 |   4 | MONTH                    |-------------|
| DAYS     |    0 |           0 |   6 | DAY                      |-------------|
| HOUR     |    0 |           0 |   5 | HOUR                     |-------------|
| MINU     |    0 |           0 |   6 | MINUTE                   |-------------|
|          |      |             |     |                          |-------------|
| CLATH    |    5 |    -9000000 |  25 | DEGREES                  |-------------|
|          |      |             |     |                          |-------------|
| CLONH    |    5 |   -18000000 |  26 | DEGREES                  |-------------|
|          |      |             |     |                          |-------------|
| HMSL     |   -1 |         -40 |  16 | METERS                   |-------------|
| HEIT     |    0 |       -1000 |  17 | METERS                   |-------------|
|          |      |             |     |                          |-------------|
| POAF     |    0 |           0 |   3 | CODE TABLE               |-------------|
|          |      |             |     |                          |-------------|
| WDIR     |    0 |           0 |   9 | DEGREES TRUE             |-------------|
| WSPD     |    1 |           0 |  12 | METERS/SECOND            |-------------|
| DGOT     |    0 |           0 |   4 | CODE TABLE               |-------------|
| HBOT     |   -1 |         -40 |  16 | METERS                   |-------------|
| HTOT     |   -1 |         -40 |  16 | METERS                   |-------------|
| MDEVG    |    1 |           0 |  10 | METERS/SECOND            |-------------|
| PTRB     |    2 |           0 |   8 | (M**2/3)(S**-1)          |-------------|
|          |      |             |     |                          |-------------|
| TMDBST   |    1 |           0 |  12 | DEGREES KELVIN           |-------------|
|          |      |             |     |                          |-------------|
| AFIC     |    0 |           0 |   4 | CODE TABLE               |-------------|
|          |      |             |     |                          |-------------|
`------------------------------------------------------------------------------'