| Tail Number / N-Number | N21KS |
| Manufacturer | RAVEN |
| Model | S55A |
| Year Built | 1974 |
| Manufacturer's Serial Number | S55A-213 |
| Aircraft Type | Balloon |
| 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 | NONE |
| Engine Model | NONE |
| Number of Engines | 0 engines |
| Average Cruising Speed | 60 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | AIR VENTURES BALLOON RIDES INC |
| Street | 2145 CONESTOGA RD |
| City | CHESTER SPRINGS |
| State | PA |
| Zip Code | 19425-3703 |
| Region | Eastern |
| County | Chester County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1974-10-01 |
| Certificate Issue Date | 2004-08-28 |
| Last Action Date | 2020-12-02 |
| Expiration Date | 2028-04-30 |
| Status | Valid Registration |
| Mode S Code | 50334033 |
| Mode S Code Hex | A1B81B |