| Tail Number / N-Number | N6686D |
| Manufacturer | BEECH |
| Model | 58 |
| Year Built | 1979 |
| Manufacturer's Serial Number | TH-1097 |
| Aircraft Type | Fixed wing multi 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 | 2 engines |
| Horsepower per Engine | 285 hp (213 kW) |
| Total Horsepower | 570 hp (425 kW) |
| Average Cruising Speed | 165 miles per hour |
| Type of Registrant | LLC |
| Owner Name | N6686D LLC |
| Street | PO BOX 120 |
| City | IDAHO SPRINGS |
| State | CO |
| Zip Code | 80452-0120 |
| Region | Northwest Mountain |
| County | Clear Creek County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1979-12-05 |
| Certificate Issue Date | 2015-04-17 |
| Last Action Date | 2020-11-14 |
| Expiration Date | 2028-04-30 |
| Status | Valid Registration |
| Mode S Code | 52152437 |
| Mode S Code Hex | A8D51F |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N6686D.
| Tail Number / N-Number | N6686D |
| Manufacturer | BOEING |
| Model | CH47C |
| Manufacturer's Serial Number | D005 |
| 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 |
| Street | BOX 16858 |
| City | PHILADELPHIA |
| State | PA |
| Zip Code | 19142 |
| Region | Eastern |
| County | Clear Creek County |
| Last Status | Valid Registration |
| Cancellation Date | 1971-09-01 |
| Exported To | ITALY |