| Tail Number / N-Number | N6684D |
| Manufacturer | BEECH |
| Model | A36 |
| Year Built | 1979 |
| Manufacturer's Serial Number | E-1610 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 6 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | CONT MOTOR |
| Engine Model | IO 520 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 285 hp (213 kW) |
| Average Cruising Speed | 138 miles per hour |
| Type of Registrant | LLC |
| Owner Name | DOWNEY LEASING LLC |
| Street | PO BOX 278 |
| City | LEXINGTON |
| State | NE |
| Zip Code | 68850-0278 |
| Region | Central |
| County | Dawson County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1979-11-12 |
| Certificate Issue Date | 2019-03-08 |
| Last Action Date | 2021-10-13 |
| Expiration Date | 2029-03-31 |
| Status | Valid Registration |
| Mode S Code | 52152331 |
| Mode S Code Hex | A8D4D9 |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N6684D.
| Tail Number / N-Number | N6684D |
| Manufacturer | BOEING |
| Model | CH47C |
| Manufacturer's Serial Number | D002 |
| Aircraft Type | Rotorcraft |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 44 seats |
| Weight Class | CLASS 3 (20,000+ pounds gross take off weight) |
| Number of Engines | 2 engines |
| Average Cruising Speed | 95 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | BOEING COMPANY VERTOL DIVISION |
| Street | BOX 16858 |
| City | PHILADELPHIA |
| State | PA |
| Zip Code | 19142 |
| Region | Eastern |
| County | Dawson County |
| Certificate Issue Date | 1971-05-28 |
| Last Status | Valid Registration |
| Cancellation Date | 1971-12-28 |
| Exported To | ITALY |