| Tail Number / N-Number | N78SM |
| Manufacturer | CESSNA |
| Model | 337D |
| Year Built | 1968 |
| Manufacturer's Serial Number | 337-1046 |
| 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) |
| Engine Manufacturer | CONT MOTOR |
| Engine Model | IO-360 SER |
| Engine Type | Reciprocating |
| Number of Engines | 2 engines |
| Horsepower per Engine | 300 hp (224 kW) |
| Total Horsepower | 600 hp (448 kW) |
| Average Cruising Speed | 142 miles per hour |
| Type of Registrant | Co-Ownership |
| Owner Name | ZIMMERMAN GREGORY J |
| Other Names |
|
| Street | 301 KIRKWOOD AVE |
| City | IOWA CITY |
| State | IA |
| Zip Code | 52240-4722 |
| Region | Central |
| County | Johnson County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1969-01-29 |
| Certificate Issue Date | 1996-05-28 |
| Last Action Date | 2022-11-21 |
| Expiration Date | 2030-04-30 |
| Status | Valid Registration |
| Mode S Code | 52507711 |
| Mode S Code Hex | AA8FC9 |