| Tail Number / N-Number | N668TM |
| Manufacturer | ROBINSON HELICOPTER |
| Model | R44 |
| Manufacturer's Serial Number | 1228 |
| Aircraft Type | Rotorcraft |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 4 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 1 engine |
| Type of Registrant | LLC |
| Owner Name | MARG AVIATION ENTERPRISES LLC |
| Street | 302 3RD ST |
| City | LAWRENCEBURG |
| State | TN |
| Zip Code | 38464-3427 |
| Region | Central |
| County | Lawrence County |
| Country | US |
| Fractional Ownership | No |
| Certificate Issue Date | 2022-12-15 |
| Last Action Date | 2022-12-15 |
| Expiration Date | 2029-12-31 |
| Status | Valid Registration |
| Mode S Code | 52151646 |
| Mode S Code Hex | A8D3A6 |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N668TM.
| Tail Number / N-Number | N668TM |
| Manufacturer | PIPER |
| Model | PA-31-350 |
| Year Built | 1979 |
| Manufacturer's Serial Number | 31-8052008 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 8 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | LYCOMING |
| Engine Model | TI0-540 SER |
| Engine Type | Turbo-prop |
| Number of Engines | 2 engines |
| Horsepower per Engine | 310 hp (231 kW) |
| Total Horsepower | 620 hp (463 kW) |
| Average Cruising Speed | 162 miles per hour |
| Type of Registrant | Co-Ownership |
| Owner Name | MUSGRAVE THOMAS C III |
| Other Names |
|
| Street | 477 SANDAU RD |
| City | SAN ANTONIO |
| State | TX |
| Zip Code | 78216-3644 |
| County | Lawrence County |
| Country | US |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1979-11-21 |
| Certificate Issue Date | 1990-03-08 |
| Last Action Date | 2008-02-15 |
| Last Status | The Triennial Aircraft Registration form was mailed and has not been returned by the Post Office |
| Cancellation Date | 2008-06-10 |
| Exported To | CANADA |