| Tail Number / N-Number | N91ST |
| Manufacturer | BALLOON WORKS |
| Model | FIREFLY 8B |
| Manufacturer's Serial Number | F8B-333 |
| 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) |
| Number of Engines | 0 engines |
| Type of Registrant | Individual |
| Owner Name | KILGORE PAUL J |
| Street | 24801 STALDER RD |
| City | CALCIUM |
| State | NY |
| Zip Code | 13616-2120 |
| Region | Eastern |
| County | Jefferson County |
| Country | US |
| Fractional Ownership | No |
| Certificate Issue Date | 2008-07-24 |
| Last Action Date | 2021-02-17 |
| Expiration Date | 2028-03-31 |
| Status | Valid Registration |
| Mode S Code | 53112764 |
| Mode S Code Hex | AC95F4 |