| Tail Number / N-Number | N21845 |
| Manufacturer | PIPER |
| Model | J4 |
| Manufacturer's Serial Number | 4-404 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 2 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | CONT MOTOR |
| Engine Model | A&C65 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 65 hp (48 kW) |
| Average Cruising Speed | 75 miles per hour |
| Type of Registrant | Individual |
| Owner Name | DOMEYER DAVID K |
| Street | 697 53RD ST |
| City | WASHOUGAL |
| State | WA |
| Zip Code | 98671-5108 |
| Region | Northwest Mountain |
| County | Clark County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1955-09-30 |
| Certificate Issue Date | 2021-09-02 |
| Last Action Date | 2022-03-26 |
| Expiration Date | 2028-09-30 |
| Status | Valid Registration |
| Mode S Code | 50355074 |
| Mode S Code Hex | A1DA3C |