| Tail Number / N-Number | N74588 |
| Manufacturer | GRUMMAN |
| Model | G-21A |
| Year Built | 1962 |
| Manufacturer's Serial Number | 1165 |
| 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 | LLC |
| Owner Name | SOUTHERN CROSS AVIATION LLC |
| Street | 3435 S PATTON AVE |
| City | SAN PEDRO |
| State | CA |
| Zip Code | 90731-6029 |
| Region | Western-Pacific |
| County | Los Angeles County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1962-10-15 |
| Certificate Issue Date | 2022-07-28 |
| Last Action Date | 2022-07-28 |
| Expiration Date | 2029-07-31 |
| Status | Valid Registration |
| Mode S Code | 52404256 |
| Mode S Code Hex | AA08AE |