| Tail Number / N-Number | N81AT |
| Manufacturer | CIRRUS DESIGN CORP |
| Model | SR20 |
| Manufacturer's Serial Number | 9189 |
| 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) |
| Number of Engines | 1 engine |
| Type of Registrant | Non Citizen Corporation |
| Owner Name | CIRRUS DESIGN CORP |
| Street | 4515 TAYLOR CIR |
| City | DULUTH |
| State | MN |
| Zip Code | 55811 |
| Region | Great Lakes |
| County | St. Louis County |
| Country | US |
| Fractional Ownership | No |
| Last Action Date | 2023-02-15 |
| Status | Aircraft registered to the manufacturer under their Dealer Certificate |
| Mode S Code | 52603425 |
| Mode S Code Hex | AB0715 |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N81AT.
| Tail Number / N-Number | N81AT |
| Manufacturer | BEECH |
| Model | B90 |
| Year Built | 1970 |
| Manufacturer's Serial Number | LJ-490 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 9 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | U/A CANADA |
| Engine Model | PT6 SER 578HP |
| Engine Type | Turbo-prop |
| Number of Engines | 2 engines |
| Horsepower per Engine | 550 hp (410 kW) |
| Total Horsepower | 1,100 hp (821 kW) |
| Average Cruising Speed | 202 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | MILES L GAMMAGE LLC |
| Street | 160 GREENTREE DR STE 101 |
| City | DOVER |
| State | DE |
| Zip Code | 19904-7620 |
| County | St. Louis County |
| Country | US |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1970-02-27 |
| Certificate Issue Date | 2006-08-28 |
| Last Action Date | 2009-09-15 |
| Last Status | Registration Expired – Pending Cancellation |
| Cancellation Date | 2013-10-29 |