| Tail Number / N-Number | N4129T |
| Manufacturer | DIAMOND AIRCRAFT IND INC |
| Model | DA20-C1 |
| Year Built | 2007 |
| Manufacturer's Serial Number | C0429 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 2 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | CONT MOTOR |
| Engine Model | IO-240-B |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 125 hp (93 kW) |
| Type of Registrant | LLC |
| Owner Name | DO FLY LLC |
| Street | PO BOX 1005 |
| City | FRANKTOWN |
| State | CO |
| Zip Code | 80116-1005 |
| Region | Northwest Mountain |
| County | Douglas County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 2007-04-27 |
| Certificate Issue Date | 2016-09-06 |
| Last Action Date | 2022-06-06 |
| Expiration Date | 2029-09-30 |
| Status | Valid Registration |
| Mode S Code | 51157463 |
| Mode S Code Hex | A4DF33 |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N4129T.
| Tail Number / N-Number | N4129T |
| Manufacturer | PIPER |
| Model | PA-32R-301 |
| Year Built | 1998 |
| Manufacturer's Serial Number | 3246119 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 7 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 | Corporation |
| Owner Name | FLIGHTLINE GROUP INC |
| Street | 3256 CAPITAL CIR SW |
| City | TALLAHASSEE |
| State | FL |
| Zip Code | 32310-8723 |
| County | Douglas County |
| Country | US |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1998-09-23 |
| Certificate Issue Date | 2001-08-28 |
| Last Action Date | 2001-08-28 |
| Last Status | Valid Registration |
| Cancellation Date | 2003-05-16 |
| Exported To | SWITZERLAND |