| Tail Number / N-Number | N789 |
| Manufacturer | GRUMMAN |
| Model | G-21A |
| Year Built | 1943 |
| Manufacturer's Serial Number | B-102 |
| Aircraft Type | Fixed wing multi engine |
| Category | Amphibian |
| Builder Certification | Type Certificated |
| Number of Seats | 8 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | P&W |
| Engine Model | R-985 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 2 engines |
| Horsepower per Engine | 450 hp (336 kW) |
| Total Horsepower | 900 hp (671 kW) |
| Average Cruising Speed | 150 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | ALASKA AVIATION MUSEUM |
| Street | 4721 AIRCRAFT DR |
| City | ANCHORAGE |
| State | AK |
| Zip Code | 99502-1080 |
| Region | Alaskan |
| County | Anchorage Municipality |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Certificate Issue Date | 2012-07-09 |
| Last Action Date | 2021-02-17 |
| Expiration Date | 2028-07-31 |
| Status | Valid Registration |
| Mode S Code | 52530764 |
| Mode S Code Hex | AAB1F4 |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N789.
| Tail Number / N-Number | N789 |
| Manufacturer | DOUGLAS |
| Model | M-3 |
| Manufacturer's Serial Number | 622 |
| Aircraft Type | Fixed wing single engine |
| 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) |
| Number of Engines | 1 engine |
| Type of Registrant | Corporation |
| Owner Name | NATIONAL AIR TRANSPORT INC |
| Street | 5936 S CICERO AVENUE |
| City | CHICAGO |
| State | IL |
| Zip Code | 60021 |
| Region | Great Lakes |
| County | Anchorage Municipality |
| Last Status | Valid Registration |
| Cancellation Date | 1930-01-02 |