| Tail Number / N-Number | N3941H |
| Manufacturer | MOONEY |
| Model | M20J |
| Year Built | 1980 |
| Manufacturer's Serial Number | 24-0988 |
| 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) |
| Engine Manufacturer | LYCOMING |
| Engine Model | I0360 SER A&C |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 200 hp (149 kW) |
| Average Cruising Speed | 126 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | PORTLAND PATROL INC |
| Street | 208 NW 1ST AVE |
| City | PORTLAND |
| State | OR |
| Zip Code | 97209-4005 |
| Region | Northwest Mountain |
| County | Multnomah County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1980-04-22 |
| Certificate Issue Date | 2023-01-19 |
| Last Action Date | 2023-01-19 |
| Expiration Date | 2030-01-31 |
| Status | Valid Registration |
| Mode S Code | 51112050 |
| Mode S Code Hex | A49428 |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N3941H.
| Tail Number / N-Number | N3941H |
| Manufacturer | ERCO |
| Model | 415-CD |
| Manufacturer's Serial Number | 4642 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 2 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 1 engine |
| Average Cruising Speed | 88 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | ENGINEERING AND RESEARCH CORPORATION |
| Street | UNDELIVERABLE |
| City | RIVERDALE |
| State | MD |
| Zip Code | 20737 |
| Region | Eastern |
| County | Multnomah County |
| Last Status | Valid Registration |
| Cancellation Date | 1947-09-22 |
| Exported To | ARGENTINA |