| Tail Number / N-Number | N731Y |
| Manufacturer | BIRD |
| Model | BK |
| Year Built | 1930 |
| Manufacturer's Serial Number | 2039-19 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 3 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | KINNER |
| Engine Model | K5 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 100 hp (75 kW) |
| Average Cruising Speed | 84 miles per hour |
| Type of Registrant | Individual |
| Owner Name | NICHOLS CHARLES F TRUSTEE |
| Street | 13470 DALEWOOD ST |
| City | BALDWIN PARK |
| State | CA |
| Zip Code | 91706-5834 |
| Region | Western-Pacific |
| County | Los Angeles County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1957-10-29 |
| Certificate Issue Date | 2018-12-18 |
| Last Action Date | 2021-07-28 |
| Expiration Date | 2028-12-31 |
| Status | Valid Registration |
| Mode S Code | 52350350 |
| Mode S Code Hex | A9D0E8 |