Deregistered Aircraft 1 of 2. This aircraft was previously assigned the N-number N6640.
| Tail Number / N-Number | N6640 |
| Manufacturer | GRUMMAN |
| Model | G-164A |
| Manufacturer's Serial Number | 768 |
| Aircraft Type | Fixed wing single engine |
| 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 | 1 engine |
| Average Cruising Speed | 98 miles per hour |
| Type of Registrant | Individual |
| Owner Name | BENFIELD JAMES |
| Street | PO BOX 93 |
| City | BEEDEVILLE |
| State | AR |
| Zip Code | 72014 |
| Region | Southwestern |
| Certificate Issue Date | 1976-03-17 |
| Last Status | Valid Registration |
| Cancellation Date | 1981-05-11 |
| Mode S Code | 52142555 |
| Mode S Code Hex | A8C56D |
Deregistered Aircraft 2 of 2. This aircraft was previously assigned the N-number N6640.
| Tail Number / N-Number | N6640 |
| Manufacturer | BERLINER AIRCRAFT CO INC |
| Model | CM4 |
| Manufacturer's Serial Number | 6 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 2 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 1 engine |
| Type of Registrant | Corporation |
| Owner Name | BERLINER AIRCRAFT COMPANY INC |
| Street | DUKE AND STRAND STREETS |
| City | ALEXANDRIA |
| State | VA |
| Zip Code | 20110 |
| Region | Eastern |
| Last Status | Valid Registration |
| Mode S Code | 52142555 |
| Mode S Code Hex | A8C56D |