| Tail Number / N-Number | N6621D |
| Manufacturer | CESSNA |
| Model | 172N |
| Year Built | 1979 |
| Manufacturer's Serial Number | 17272908 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 4 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | LYCOMING |
| Engine Model | 0-320 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 180 hp (134 kW) |
| Average Cruising Speed | 105 miles per hour |
| Type of Registrant | LLC |
| Owner Name | COSTA AIR SERVICE LLC |
| Street | 342 VICTORY HWY |
| City | PAINTED POST |
| State | NY |
| Zip Code | 14870-9126 |
| Region | Eastern |
| County | Steuben County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1979-08-15 |
| Certificate Issue Date | 2020-09-15 |
| Last Action Date | 2020-09-15 |
| Expiration Date | 2027-09-30 |
| Status | Valid Registration |
| Mode S Code | 52137046 |
| Mode S Code Hex | A8BE26 |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N6621D.
| Tail Number / N-Number | N6621D |
| Manufacturer | LOCKHEED |
| Model | PV-2 |
| Manufacturer's Serial Number | 37274 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 10 seats |
| Weight Class | CLASS 3 (20,000+ pounds gross take off weight) |
| Number of Engines | 2 engines |
| Average Cruising Speed | 129 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | TRADE-AYER INC |
| Street | LINDEN AIRPORT |
| City | LINDEN |
| State | NJ |
| Zip Code | 08540 |
| Region | Eastern |
| County | Steuben County |
| Certificate Issue Date | 1958-04-18 |
| Last Status | Valid Registration |
| Cancellation Date | 1962-11-13 |