| Tail Number / N-Number | N4001L |
| Manufacturer | ROBINSON HELICOPTER |
| Model | R22 BETA |
| Year Built | 1990 |
| Manufacturer's Serial Number | 1331 |
| Aircraft Type | Rotorcraft |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 2 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | LYCOMING |
| Engine Model | 0-320 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 180 hp (134 kW) |
| Type of Registrant | Corporation |
| Owner Name | ROBINSON HELICOPTER CO |
| Street | 2901 AIRPORT DR |
| City | TORRANCE |
| State | CA |
| Zip Code | 90505-6115 |
| Region | Western-Pacific |
| County | Los Angeles County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1990-03-15 |
| Last Action Date | 1990-04-03 |
| Status | Aircraft registered to the manufacturer under their Dealer Certificate |
| Mode S Code | 51127447 |
| Mode S Code Hex | A4AF27 |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N4001L.
| Tail Number / N-Number | N4001L |
| Manufacturer | CESSNA |
| Model | 421 |
| Manufacturer's Serial Number | 4210001 |
| 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 |
| County | Los Angeles County |
| Last Status | The Triennial Aircraft Registration form was mailed and has not been returned by the Post Office |