| Tail Number / N-Number | N21AJ |
| Manufacturer | SOCATA |
| Model | TB 10 |
| Manufacturer's Serial Number | 754 |
| 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 | 0-360-A1D |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 180 hp (134 kW) |
| Type of Registrant | Individual |
| Owner Name | ALLCROFT ROGER A |
| Street | 69 ADAMS RD |
| City | HAYDENVILLE |
| State | MA |
| Zip Code | 01039-9722 |
| Region | New England |
| County | Hampshire County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1987-06-19 |
| Certificate Issue Date | 1996-09-12 |
| Last Action Date | 2020-11-27 |
| Expiration Date | 2028-04-30 |
| Status | Valid Registration |
| Mode S Code | 50333462 |
| Mode S Code Hex | A1B732 |