| Tail Number / N-Number | N42AK |
| Manufacturer | AVIAT AIRCRAFT INC |
| Model | A-1A |
| Year Built | 1998 |
| Manufacturer's Serial Number | 1434 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 2 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | LYCOMING |
| Engine Model | O&VO-360 SER |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 180 hp (134 kW) |
| Type of Registrant | LLC |
| Owner Name | G4-AIR LLC |
| Street | 5309 MEADOW BROOK RD |
| City | BIRMINGHAM |
| State | AL |
| Zip Code | 35242-3316 |
| Region | Southern |
| County | Jefferson County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1998-10-20 |
| Certificate Issue Date | 2011-07-27 |
| Last Action Date | 2020-02-27 |
| Expiration Date | 2027-07-31 |
| Status | Valid Registration |
| Mode S Code | 51174520 |
| Mode S Code Hex | A4F950 |
Deregistered Aircraft 1 of 2. This aircraft was previously assigned the N-number N42AK.
| Tail Number / N-Number | N42AK |
| Manufacturer | THRASH FRANK J |
| Model | SA100 |
| Manufacturer's Serial Number | 423ACRODUSTERII |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 1 seat |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 1 engine |
| Average Cruising Speed | 105 miles per hour |
| Type of Registrant | Individual |
| Owner Name | KOVSCHAK ANTHONY ANDREW |
| Street | 6909 TRAPPING TER |
| City | FORT WORTH |
| State | TX |
| Zip Code | 76116 |
| County | Jefferson County |
| Country | US |
| Certificate Issue Date | 1996-02-13 |
| Last Action Date | 2002-02-19 |
| Last Status | The Triennial Aircraft Registration form was mailed and has not been returned by the Post Office |
| Cancellation Date | 2003-11-22 |
Deregistered Aircraft 2 of 2. This aircraft was previously assigned the N-number N42AK.
| Tail Number / N-Number | N42AK |
| Manufacturer | BEECH |
| Model | B-99 |
| Manufacturer's Serial Number | U148 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 17 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 2 engines |
| Average Cruising Speed | 187 miles per hour |
| Type of Registrant | Non Citizen Corporation |
| Owner Name | HLS KARLSONNE CORP |
| Street | 3400 MARINE MIDLAND CENTER |
| City | BUFFALO |
| State | NY |
| Zip Code | 14203 |
| County | Jefferson County |
| Country | US |
| Certificate Issue Date | 1990-07-10 |
| Last Action Date | 1990-07-11 |
| Last Status | Valid Registration |
| Cancellation Date | 1992-09-23 |