| Tail Number / N-Number | N20954 |
| Manufacturer | CESSNA |
| Model | 172M |
| Manufacturer's Serial Number | 17263881 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 4 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | LYCOMING |
| Engine Model | 0-320 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 180 hp (134 kW) |
| Average Cruising Speed | 108 miles per hour |
| Type of Registrant | Co-Ownership |
| Owner Name | HARDIN JOHN M |
| Other Names |
|
| Street | 7 SILENT WINGS BLVD |
| City | TERRELL |
| State | TX |
| Zip Code | 75160-5401 |
| Region | Southwestern |
| County | Kaufman County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1974-09-12 |
| Certificate Issue Date | 2023-01-16 |
| Last Action Date | 2023-01-16 |
| Expiration Date | 2030-01-31 |
| Status | Valid Registration |
| Mode S Code | 50333226 |
| Mode S Code Hex | A1B696 |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N20954.
| Tail Number / N-Number | N20954 |
| Manufacturer | CESSNA |
| Model | T-50 |
| Manufacturer's Serial Number | 6699 |
| Aircraft Type | Fixed wing multi 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) |
| Number of Engines | 2 engines |
| Average Cruising Speed | 131 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | SUMMER INSTITUTE OF LINGUISTICS |
| Street | BOX 7 |
| City | SULPHUR SPRINGS |
| State | AR |
| Zip Code | 72768 |
| Region | Southwestern |
| County | Kaufman County |
| Certificate Issue Date | 1956-07-13 |
| Last Status | Valid Registration |
| Cancellation Date | 1958-02-19 |
| Exported To | PERU |