| Tail Number / N-Number | N4503Y |
| Manufacturer | PIPER |
| Model | PA-18-150 |
| Year Built | 1971 |
| Manufacturer's Serial Number | 18-8923 |
| 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 | STEPPLER DEAN M |
| Street | 14352 COUNTY ROAD 324 |
| City | CULBERTSON |
| State | MT |
| Zip Code | 59218-9437 |
| Region | Northwest Mountain |
| County | Roosevelt County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1971-03-02 |
| Certificate Issue Date | 2012-01-10 |
| Last Action Date | 2020-08-31 |
| Expiration Date | 2028-01-31 |
| Status | Valid Registration |
| Mode S Code | 51272364 |
| Mode S Code Hex | A574F4 |