| Tail Number / N-Number | N121PB |
| Manufacturer | CESSNA |
| Model | 402C |
| Year Built | 1981 |
| Manufacturer's Serial Number | 402C0507 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 10 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 | 2 engines |
| Horsepower per Engine | 300 hp (224 kW) |
| Total Horsepower | 600 hp (448 kW) |
| Type of Registrant | Corporation |
| Owner Name | HYANNIS AIR SERVICES INC DBA |
| Other Names |
|
| Street | 660 BARNSTABLE RD |
| City | HYANNIS |
| State | MA |
| Zip Code | 02601-1927 |
| Region | New England |
| County | Barnstable County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1981-07-07 |
| Certificate Issue Date | 2018-10-24 |
| Last Action Date | 2021-05-26 |
| Expiration Date | 2028-10-31 |
| Status | Valid Registration |
| Mode S Code | 50054260 |
| Mode S Code Hex | A058B0 |