| Tail Number / N-Number | N4181X |
| Manufacturer | ROBINSON HELICOPTER |
| Model | R44 |
| Year Built | 2008 |
| Manufacturer's Serial Number | 1948 |
| 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 | O-540-F1B5 |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 260 hp (194 kW) |
| Type of Registrant | LLC |
| Owner Name | FLY FOR FUN AIRCRAFT LLC |
| Street | 4421 HAVERFORD DR |
| City | ROCKVILLE |
| State | MD |
| Zip Code | 20853-1830 |
| Region | Eastern |
| County | Montgomery County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 2008-09-03 |
| Certificate Issue Date | 2017-01-26 |
| Last Action Date | 2022-08-21 |
| Expiration Date | 2030-01-31 |
| Status | Valid Registration |
| Mode S Code | 51172151 |
| Mode S Code Hex | A4F469 |
Deregistered Aircraft 1 of 2. This aircraft was previously assigned the N-number N4181X.
| Tail Number / N-Number | N4181X |
| Manufacturer | BELL |
| Model | 412EP |
| Manufacturer's Serial Number | 36350 |
| Aircraft Type | Rotorcraft |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 15 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 2 engines |
| Type of Registrant | Corporation |
| Owner Name | BELL HELICOPTER TEXTRON INC |
| Street | 13901 AVIATOR WAY |
| City | FORT WORTH |
| State | TX |
| Zip Code | 76177-4319 |
| County | Montgomery County |
| Country | US |
| Certificate Issue Date | 2004-09-22 |
| Last Action Date | 2004-09-22 |
| Last Status | Valid Registration |
| Cancellation Date | 2005-01-14 |
| Exported To | JAPAN |
Deregistered Aircraft 2 of 2. This aircraft was previously assigned the N-number N4181X.
| Tail Number / N-Number | N4181X |
| Manufacturer | AERO COMMANDER |
| Model | 100-180 |
| Manufacturer's Serial Number | 5044 |
| 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) |
| Number of Engines | 1 engine |
| Average Cruising Speed | 105 miles per hour |
| County | Montgomery County |
| Last Status | The Triennial Aircraft Registration form was mailed and has not been returned by the Post Office |