| Tail Number / N-Number | N14RT |
| Manufacturer | CESSNA |
| Model | 421B |
| Year Built | 1974 |
| Manufacturer's Serial Number | 421B0640 |
| 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 | CONT MOTOR |
| Engine Model | GTSI0-520-F-K |
| Engine Type | Reciprocating |
| Number of Engines | 2 engines |
| Horsepower per Engine | 435 hp (325 kW) |
| Total Horsepower | 870 hp (649 kW) |
| Average Cruising Speed | 172 miles per hour |
| Type of Registrant | LLC |
| Owner Name | SIERRA AE LLC |
| Street | 3511 SILVERSIDE RD STE 105 |
| City | WILMINGTON |
| State | DE |
| Zip Code | 19810-4902 |
| Region | Eastern |
| County | New Castle County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1974-08-07 |
| Certificate Issue Date | 2022-08-24 |
| Last Action Date | 2022-08-24 |
| Expiration Date | 2029-08-31 |
| Status | Valid Registration |
| Mode S Code | 50120740 |
| Mode S Code Hex | A0A1E0 |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N14RT.
| Tail Number / N-Number | N14RT |
| Manufacturer | TURNER |
| Model | BARNETT J3M |
| Year Built | 1976 |
| Manufacturer's Serial Number | RBT-007 |
| Aircraft Type | Rotorcraft |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 1 seat |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | CONT MOTOR |
| Engine Model | A&C65 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 65 hp (48 kW) |
| Average Cruising Speed | 45 miles per hour |
| Type of Registrant | Individual |
| Owner Name | WILLIS RAYMOND L |
| Street | 401 E GLENOAKS |
| City | GLENDALE |
| State | CA |
| Zip Code | 91207 |
| County | New Castle County |
| Country | US |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 1977-07-12 |
| Certificate Issue Date | 1977-06-23 |
| Last Action Date | 1977-06-25 |
| Last Status | Certificate of Registration has been revoked |
| Cancellation Date | 2009-06-30 |