| Tail Number / N-Number | N99AK |
| Manufacturer | SMISEK-KIME |
| Model | PITTS SPECIAL S-1 |
| Manufacturer's Serial Number | 158-H |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 1 seat |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | LYCOMING |
| Engine Model | I0360 SER A&C |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 200 hp (149 kW) |
| Average Cruising Speed | 108 miles per hour |
| Type of Registrant | Individual |
| Owner Name | BORNHEBER RALF |
| Street | HIRSCHBERGERSTRASSE 31 |
| City | ALLERSBERG |
| Zip Code | 90584 |
| Region | European |
| Country | DE |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 1986-02-21 |
| Certificate Issue Date | 2017-09-08 |
| Last Action Date | 2020-04-30 |
| Expiration Date | 2027-09-30 |
| Status | Valid Registration |
| Mode S Code | 53350124 |
| Mode S Code Hex | ADD054 |