| Tail Number / N-Number | N16591 |
| Manufacturer | WACO |
| Model | EQC-6 |
| Year Built | 1936 |
| Manufacturer's Serial Number | 4490 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 5 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | WRIGHT |
| Engine Model | 760E-2 |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 350 hp (261 kW) |
| Average Cruising Speed | 128 miles per hour |
| Type of Registrant | Co-Ownership |
| Owner Name | PEMBERTON ADDISON JC |
| Other Names |
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| Street | 5302 N VISTA CT |
| City | SPOKANE |
| State | WA |
| Zip Code | 99212-1639 |
| Region | Northwest Mountain |
| County | Spokane County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1959-07-02 |
| Certificate Issue Date | 2008-05-29 |
| Last Action Date | 2023-01-22 |
| Expiration Date | 2027-05-31 |
| Status | Valid Registration |
| Mode S Code | 50203756 |
| Mode S Code Hex | A107EE |