| Tail Number / N-Number | N5666D |
| Manufacturer | MAULE |
| Model | MX-7-235 |
| Manufacturer's Serial Number | 10035C |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 5 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | LYCOMING |
| Engine Model | IO-540 SER |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 300 hp (224 kW) |
| Type of Registrant | Individual |
| Owner Name | MONAHAN LINDA J |
| Street | 21129 JIMMERSALL LN |
| City | GROVELAND |
| State | CA |
| Zip Code | 95321-9554 |
| Region | Western-Pacific |
| County | Tuolumne County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1986-05-07 |
| Certificate Issue Date | 2003-12-12 |
| Last Action Date | 2021-10-28 |
| Expiration Date | 2029-03-31 |
| Status | Valid Registration |
| Mode S Code | 51640142 |
| Mode S Code Hex | A74062 |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N5666D.
| Tail Number / N-Number | N5666D |
| Manufacturer | BEECH |
| Model | E50 |
| Manufacturer's Serial Number | EH-53 |
| 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) |
| Number of Engines | 2 engines |
| Average Cruising Speed | 167 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | SWEARINGEN AIRCRAFT |
| Street | P O BOX 32486 |
| City | SAN ANTONIO |
| State | TX |
| Zip Code | 78216 |
| Region | Southwestern |
| County | Tuolumne County |
| Certificate Issue Date | 1970-02-11 |
| Last Status | Valid Registration |
| Cancellation Date | 1970-02-10 |