| Tail Number / N-Number | N621MS |
| Manufacturer | AEROTEK |
| Model | PITTS S-1T |
| Year Built | 1984 |
| Manufacturer's Serial Number | 1021 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | 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 | AEIO-360 SER |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 180 hp (134 kW) |
| Type of Registrant | Non Citizen Corporation |
| Owner Name | AIRPLANE REPAIR INC |
| Street | 1965 N MARSHALL AVE STE 102 |
| City | EL CAJON |
| State | CA |
| Zip Code | 92020-1120 |
| Region | Western-Pacific |
| County | San Diego County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 1998-05-28 |
| Certificate Issue Date | 2022-09-06 |
| Last Action Date | 2022-09-06 |
| Expiration Date | 2029-09-30 |
| Status | Valid Registration |
| Mode S Code | 52015430 |
| Mode S Code Hex | A81B18 |