| Tail Number / N-Number | N93521 |
| Manufacturer | ROBINSON HELICOPTER |
| Model | R22 BETA |
| Year Built | 1993 |
| Manufacturer's Serial Number | 2376 |
| 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 | Individual |
| Owner Name | QUITTER JOHN F |
| Street | 668 CANYON CREEK WAY |
| City | GALT |
| State | CA |
| Zip Code | 95632-3023 |
| Region | Western-Pacific |
| County | Sacramento County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1993-10-12 |
| Certificate Issue Date | 2007-05-05 |
| Last Action Date | 2023-01-22 |
| Expiration Date | 2027-05-31 |
| Status | Valid Registration |
| Mode S Code | 53175364 |
| Mode S Code Hex | ACFAF4 |
Deregistered Aircraft 1 of 2. This aircraft was previously assigned the N-number N93521.
| Tail Number / N-Number | N93521 |
| Manufacturer | ERCOUPE |
| Model | 415-C |
| Manufacturer's Serial Number | 844 |
| 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 | 90 miles per hour |
| Type of Registrant | Individual |
| Owner Name | ADAMS E MARTIN JR |
| Street | 412 S DUNHAM ST |
| City | ARLINGTON |
| State | WA |
| Zip Code | 99156 |
| Region | Northwest Mountain |
| County | Sacramento County |
| Certificate Issue Date | 1961-09-05 |
| Last Status | Valid Registration |
| Cancellation Date | 1965-05-21 |
| Exported To | CANADA |
Deregistered Aircraft 2 of 2. This aircraft was previously assigned the N-number N93521.
| Tail Number / N-Number | N93521 |
| Manufacturer | CESSNA |
| Model | 152 |
| Manufacturer's Serial Number | 15285506 |
| 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 |
| County | Sacramento County |
| Last Status | The Triennial Aircraft Registration form was mailed and has not been returned by the Post Office |