| ID | Name | Required | List |
|---|---|---|---|
| ORI | Originating Agency Identifier (ORI) | Y | N |
| ATN | Attention of Recipient | N | N |
| ID | Name | Required | List |
|---|---|---|---|
| REG | Registration Number (REG) | N | N |
| SIT | Aircraft Sighted (SIT) | N | Y |
| DOS | Date of Aircraft Sighting (DOS) | N | N |
| DAR | Date Range (DAR) | N | N |
| TYP | Aircraft Type (TYP) | N | N |
| ORI1 | Originating Agency Code (ORI) | N | N |
| ID | Name | Required | List |
|---|---|---|---|
| COD | Airport Identification Code (COD) | N | N |