Deregistered Aircraft 1 of 2. This aircraft was previously assigned the N-number N456HM.
| Tail Number / N-Number | N456HM |
| Manufacturer | ROBINSON HELICOPTER COMPANY |
| Model | R44 II |
| Year Built | 2009 |
| Manufacturer's Serial Number | 12581 |
| Aircraft Type | Rotorcraft |
| 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 | IO-540-AE1A5 |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 260 hp (194 kW) |
| Type of Registrant | Corporation |
| Owner Name | HELICOPTER MAINTENANCE UNLIMITED |
| Street | 3449 AIRPORT DR HANGAR 2 |
| City | TORRANCE |
| State | CA |
| Zip Code | 90505 |
| Country | US |
| Airworthiness Classification | Standard |
| Airworthiness Date | 2009-01-09 |
| Certificate Issue Date | 2009-07-15 |
| Last Action Date | 2009-10-14 |
| Last Status | Valid Registration |
| Cancellation Date | 2009-12-02 |
| Exported To | BRAZIL |
| Mode S Code | 51304441 |
| Mode S Code Hex | A58921 |
Deregistered Aircraft 2 of 2. This aircraft was previously assigned the N-number N456HM.
| Tail Number / N-Number | N456HM |
| Manufacturer | CESSNA |
| Model | U206F |
| Manufacturer's Serial Number | U20602840 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 6 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 1 engine |
| Average Cruising Speed | 127 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | AVEX INC |
| Street | 106 E SANTA MARIA ST |
| City | SANTA PAULA |
| State | CA |
| Zip Code | 93060 |
| Country | US |
| Certificate Issue Date | 1990-07-17 |
| Last Action Date | 1990-07-19 |
| Last Status | Valid Registration |
| Cancellation Date | 1991-05-02 |
| Exported To | SOUTH AFRICA |
| Mode S Code | 51304441 |
| Mode S Code Hex | A58921 |