| Tail Number / N-Number | N90AK |
| Manufacturer | CASSELL ROBERT W |
| Model | MONSTER CUB |
| Manufacturer's Serial Number | 001 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 3 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 1 engine |
| Type of Registrant | Individual |
| Owner Name | CASSELL ROBERT W |
| Street | 7362 W PARKS HWY PMB 199 |
| City | WASILLA |
| State | AK |
| Zip Code | 99623-9300 |
| Region | Alaskan |
| County | Yukon-Koyukuk Census Area |
| Country | US |
| Fractional Ownership | No |
| Certificate Issue Date | 2020-04-27 |
| Last Action Date | 2022-11-24 |
| Expiration Date | 2030-04-30 |
| Status | Valid Registration |
| Mode S Code | 53066335 |
| Mode S Code Hex | AC6CDD |