| Tail Number / N-Number | N89BJ |
| Manufacturer | JANZEN BYRON K |
| Model | SUNDERLAND S18 |
| Year Built | 1997 |
| Manufacturer's Serial Number | 100 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 2 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | LYCOMING |
| Engine Model | 0-360-A1D |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 180 hp (134 kW) |
| Type of Registrant | Individual |
| Owner Name | JANZEN BYRON K |
| Street | 1767 SOMERSET LN |
| City | REDLANDS |
| State | CA |
| Zip Code | 92374-5560 |
| Region | Western-Pacific |
| County | San Bernardino County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 1997-10-10 |
| Certificate Issue Date | 1997-07-10 |
| Last Action Date | 2020-06-18 |
| Expiration Date | 2027-11-30 |
| Status | Valid Registration |
| Mode S Code | 53041435 |
| Mode S Code Hex | AC431D |