| Tail Number / N-Number | N4042K |
| Manufacturer | BALLOON WORKS |
| Model | FIREFLY 7 |
| Year Built | 1979 |
| Manufacturer's Serial Number | 7856 |
| 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 | HALLING WAYNE C |
| Street | 18500 N 70TH ST |
| City | CERESCO |
| State | NE |
| Zip Code | 68017-4352 |
| Region | Central |
| County | Saunders County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1979-03-07 |
| Certificate Issue Date | 2014-05-13 |
| Last Action Date | 2023-01-22 |
| Expiration Date | 2027-05-31 |
| Status | Valid Registration |
| Mode S Code | 51137045 |
| Mode S Code Hex | A4BE25 |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N4042K.
| Tail Number / N-Number | N4042K |
| Manufacturer | NORTH AMERICAN |
| Model | NAVION |
| Year Built | 1947 |
| Manufacturer's Serial Number | NAV-4-1042 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 5 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 1 engine |
| Average Cruising Speed | 126 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | WEST INDIES SUGAR CORP |
| Street | 60 EAST 42ND STREET |
| City | NEW YORK |
| State | NY |
| Zip Code | 10165 |
| Region | Eastern |
| County | Saunders County |
| Certificate Issue Date | 1947-10-02 |
| Last Status | Valid Registration |
| Cancellation Date | 1949-11-22 |
| Exported To | CUBA |