| Tail Number / N-Number | N321RM |
| Manufacturer | MOONEY AIRCRAFT CORP. |
| Model | M20K |
| Year Built | 1979 |
| Manufacturer's Serial Number | 25-0230 |
| 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) |
| Engine Manufacturer | CONT MOTOR |
| Engine Model | TSIO-360 SER |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 225 hp (168 kW) |
| Type of Registrant | Corporation |
| Owner Name | BIGLER & ASSOCIATES AVIATION INC |
| Street | 3096 BOEING RD |
| City | CAMERON PARK |
| State | CA |
| Zip Code | 95682-7831 |
| Region | Western-Pacific |
| County | El Dorado County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1992-05-22 |
| Certificate Issue Date | 2018-09-07 |
| Last Action Date | 2021-05-05 |
| Expiration Date | 2028-09-30 |
| Status | Valid Registration |
| Mode S Code | 50671612 |
| Mode S Code Hex | A3738A |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N321RM.
| Tail Number / N-Number | N321RM |
| Manufacturer | CESSNA |
| Model | 421A |
| Manufacturer's Serial Number | 421A0093 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 7 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 | El Dorado County |
| Last Status | N-Number Assigned – but has not yet been registered |