| Tail Number / N-Number | N3921M |
| Manufacturer | PIPER |
| Model | PA-12 |
| Year Built | 1947 |
| Manufacturer's Serial Number | 12-2817 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 3 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | LYCOMING |
| Engine Model | 0-235 SERIES |
| Engine Type | 4 Cycle |
| Number of Engines | 1 engine |
| Horsepower | 115 hp (86 kW) |
| Average Cruising Speed | 82 miles per hour |
| Type of Registrant | Individual |
| Owner Name | JOSLIN DAVID W |
| Street | 14588 ABIGAIL CIR |
| City | SEWARD |
| State | AK |
| Zip Code | 99664-9618 |
| Region | Alaskan |
| County | Kenai Peninsula Borough |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1956-03-24 |
| Certificate Issue Date | 2018-04-13 |
| Last Action Date | 2020-11-25 |
| Expiration Date | 2028-04-30 |
| Status | Valid Registration |
| Mode S Code | 51106276 |
| Mode S Code Hex | A48CBE |