| Tail Number / N-Number | N2521S |
| Manufacturer | PIPER |
| Model | PA-18-150 |
| Year Built | 1979 |
| Manufacturer's Serial Number | 18-7909152 |
| 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 | LYCOMING |
| Engine Model | 0-320 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 180 hp (134 kW) |
| Average Cruising Speed | 97 miles per hour |
| Type of Registrant | Individual |
| Owner Name | SIEBERTS SOREN K |
| Street | 2025 CHURCHILL DR |
| City | ANCHORAGE |
| State | AK |
| Zip Code | 99517-1311 |
| Region | Alaskan |
| County | Anchorage Municipality |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1979-06-20 |
| Certificate Issue Date | 2023-01-20 |
| Last Action Date | 2023-01-20 |
| Expiration Date | 2030-01-31 |
| Status | Valid Registration |
| Mode S Code | 50460570 |
| Mode S Code Hex | A26178 |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N2521S.
| Tail Number / N-Number | N2521S |
| Manufacturer | CESSNA |
| Model | 337C |
| Manufacturer's Serial Number | 3370821 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 6 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 2 engines |
| Average Cruising Speed | 142 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | DAVIS HORNE FLYING SERVICE INC |
| County | Anchorage Municipality |
| Certificate Issue Date | 1974-07-15 |
| Last Status | Valid Registration |
| Cancellation Date | 1975-01-21 |
| Exported To | CANADA |