Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N1520S.
| Tail Number / N-Number | N1520S |
| Manufacturer | BALLOON WORKS |
| Model | FIREFLY 7 |
| Year Built | 1981 |
| Manufacturer's Serial Number | 11098 |
| 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 | 63 miles per hour |
| Type of Registrant | Individual |
| Owner Name | SALE REPORTED |
| Street | PO BOX 1215 |
| City | BOULDER |
| State | CO |
| Zip Code | 80306 |
| Country | US |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1981-10-06 |
| Last Action Date | 1991-12-09 |
| Last Status | Sale Reported – Pending Cancellation |
| Cancellation Date | 2011-04-04 |
| Mode S Code | 50152006 |
| Mode S Code Hex | A0D406 |