| Tail Number / N-Number | N440HP |
| Manufacturer | JEFFREY E MCNAMARA |
| Model | MAMMOTH |
| Year Built | 2013 |
| Manufacturer's Serial Number | 0001 |
| Aircraft Type | Fixed wing single engine |
| Category | Amphibian |
| Builder Certification | Not Type Certificated |
| Number of Seats | 6 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | AMA/EXPR |
| Engine Model | UNKNOWN ENG |
| Number of Engines | 1 engine |
| Type of Registrant | Individual |
| Owner Name | MC NAMARA JEFFREY E |
| Street | 18413 OAK PARK DR |
| City | RIVERSIDE |
| State | CA |
| Zip Code | 92504-9430 |
| Region | Western-Pacific |
| County | Riverside County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 2013-06-02 |
| Certificate Issue Date | 2013-05-17 |
| Last Action Date | 2021-12-20 |
| Expiration Date | 2029-05-31 |
| Status | Valid Registration |
| Mode S Code | 51245532 |
| Mode S Code Hex | A54B5A |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N440HP.
| Tail Number / N-Number | N440HP |
| Manufacturer | CESSNA |
| Model | 421B |
| Manufacturer's Serial Number | 421B0030 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 8 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 2 engines |
| Average Cruising Speed | 172 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | DODSON AVIATION INCORPORATED |
| Street | RR 2 BOX 0 |
| City | OTTAWA |
| State | KS |
| Zip Code | 66067 |
| County | Riverside County |
| Country | US |
| Certificate Issue Date | 1991-04-04 |
| Last Action Date | 1994-04-20 |
| Last Status | The Triennial Aircraft Registration form was mailed and has not been returned by the Post Office |
| Cancellation Date | 1994-07-05 |