| Tail Number / N-Number | N158SS |
| Manufacturer | BURKHART GROB FLUGZEUGBAU |
| Model | G103 TWIN ASTIR |
| Year Built | 1978 |
| Manufacturer's Serial Number | 3142 |
| Aircraft Type | Glider |
| 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 | NONE |
| Engine Model | NONE |
| Number of Engines | 0 engines |
| Type of Registrant | LLC |
| Owner Name | COUNTER AVIATION SERVICES LLC |
| Street | 16643 LOOP CIR |
| City | OMAHA |
| State | NE |
| Zip Code | 68136-4313 |
| Region | Central |
| County | Douglas County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1978-09-19 |
| Certificate Issue Date | 2020-11-18 |
| Last Action Date | 2020-11-18 |
| Expiration Date | 2027-11-30 |
| Status | Valid Registration |
| Mode S Code | 50164610 |
| Mode S Code Hex | A0E988 |