| Tail Number / N-Number | N399KM |
| Manufacturer | CESSNA |
| Model | T210L |
| Year Built | 1973 |
| Manufacturer's Serial Number | 21059982 |
| 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) |
| Engine Manufacturer | CONT MOTOR |
| Engine Model | TSIO-520 SER |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 300 hp (224 kW) |
| Average Cruising Speed | 141 miles per hour |
| Type of Registrant | Co-Ownership |
| Owner Name | CUSTODIO OLGA |
| Other Names |
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| Street | 26 GRANBURG CIR |
| City | SAN ANTONIO |
| State | TX |
| Zip Code | 78218-3004 |
| Region | Southwestern |
| County | Bexar County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1973-07-19 |
| Certificate Issue Date | 2022-01-20 |
| Last Action Date | 2022-01-20 |
| Expiration Date | 2029-01-31 |
| Status | Valid Registration |
| Mode S Code | 51122445 |
| Mode S Code Hex | A4A525 |