| Tail Number / N-Number | N7721Z |
| Manufacturer | NORTH AMERICAN |
| Model | AT-6G |
| Manufacturer's Serial Number | SA068 |
| 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 | P&W |
| Engine Model | R1340 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 600 hp (448 kW) |
| Average Cruising Speed | 141 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | MEDICAL DIAGNOSTIC IMAGING INC |
| Street | 1000 DUNBARTON CIR |
| City | SACRAMENTO |
| State | CA |
| Zip Code | 95825-6821 |
| Region | Western-Pacific |
| County | Sacramento County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1995-04-28 |
| Certificate Issue Date | 1995-06-28 |
| Last Action Date | 2020-03-17 |
| Expiration Date | 2027-08-31 |
| Status | Valid Registration |
| Mode S Code | 52471410 |
| Mode S Code Hex | AA7308 |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N7721Z.
| Tail Number / N-Number | N7721Z |
| Manufacturer | PIPER |
| Model | PA-25-235 |
| Year Built | 1966 |
| Manufacturer's Serial Number | 25-3888 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 1 seat |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 1 engine |
| Average Cruising Speed | 93 miles per hour |
| Type of Registrant | Individual |
| Owner Name | DOUGLASS JIMMY C/DBA DOUGLASS FLYING SERVICE |
| Street | PO BOX 213 |
| City | ASPERMONT |
| State | TX |
| Zip Code | 79502 |
| Region | Southwestern |
| County | Sacramento County |
| Certificate Issue Date | 1970-01-20 |
| Last Status | Valid Registration |
| Cancellation Date | 1971-06-25 |