| Tail Number / N-Number | N158SQ |
| Manufacturer | BEECH |
| Model | 76 |
| Year Built | 1978 |
| Manufacturer's Serial Number | ME-86 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 4 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | LYCOMING |
| Engine Model | O&VO-360 SER |
| Engine Type | Reciprocating |
| Number of Engines | 2 engines |
| Horsepower per Engine | 180 hp (134 kW) |
| Total Horsepower | 360 hp (269 kW) |
| Type of Registrant | Corporation |
| Owner Name | GRIFFITH AVIATION INC |
| Street | 1705 E MAIN ST |
| City | GRIFFITH |
| State | IN |
| Zip Code | 46319-2941 |
| Region | Great Lakes |
| County | Lake County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1995-09-27 |
| Certificate Issue Date | 2009-04-03 |
| Last Action Date | 2022-08-13 |
| Expiration Date | 2030-01-31 |
| Status | Valid Registration |
| Mode S Code | 50164606 |
| Mode S Code Hex | A0E986 |