| Tail Number / N-Number | N55 |
| Manufacturer | LEARJET INC |
| Model | 60 |
| Year Built | 1993 |
| Manufacturer's Serial Number | 013 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 11 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | P&W CANADA |
| Engine Model | PW305A |
| Engine Type | Turbo-fan |
| Number of Engines | 2 engines |
| Thrust per Engine | 4,679 pounds-force (20.8 kN) |
| Total Thrust | 9,358 pounds-force (41.6 kN) |
| Type of Registrant | Government |
| Owner Name | FEDERAL AVIATION ADMINISTRATION |
| Street | HGR 9E BLDG 10 RM 303 6500 S MACARTHUR BLVD |
| City | OKLAHOMA CITY |
| State | OK |
| Zip Code | 73169-6918 |
| Region | Southwestern |
| County | Oklahoma County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 2010-01-21 |
| Certificate Issue Date | 1996-01-16 |
| Last Action Date | 2022-01-19 |
| Expiration Date | 2029-06-30 |
| Status | Valid Registration |
| Mode S Code | 51576421 |
| Mode S Code Hex | A6FD11 |
Deregistered Aircraft 1 of 4. This aircraft was previously assigned the N-number N55.
| Tail Number / N-Number | N55 |
| Manufacturer | BEECH |
| Model | C18S |
| Manufacturer's Serial Number | 521 |
| 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) |
| Number of Engines | 2 engines |
| Average Cruising Speed | 165 miles per hour |
| Type of Registrant | Government |
| Owner Name | DEPARTMENT OF COMMERCE |
| Street | UNKNOWN |
| City | OKLAHOMA CITY |
| State | OK |
| Zip Code | 73125 |
| Region | Southwestern |
| County | Oklahoma County |
| Certificate Issue Date | 1946-09-05 |
| Last Status | Valid Registration |
| Cancellation Date | 1948-12-23 |
Deregistered Aircraft 2 of 4. This aircraft was previously assigned the N-number N55.
| Tail Number / N-Number | N55 |
| Manufacturer | MONOCOUPE |
| Model | D145 |
| Year Built | 1935 |
| Manufacturer's Serial Number | D121 |
| 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 | Government |
| Owner Name | BUREAU OF AIR COMMERCE |
| Street | UNKNOWN |
| City | OKLAHOMA CITY |
| State | OK |
| Zip Code | 73125 |
| Region | Southwestern |
| County | Oklahoma County |
| Certificate Issue Date | 1937-06-18 |
| Last Status | Valid Registration |
| Cancellation Date | 1938-04-14 |
Deregistered Aircraft 3 of 4. This aircraft was previously assigned the N-number N55.
| Tail Number / N-Number | N55 |
| Manufacturer | STANDARD |
| Model | J-1 |
| Manufacturer's Serial Number | 001 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 3 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 1 engine |
| Average Cruising Speed | 67 miles per hour |
| Type of Registrant | Individual |
| Owner Name | WEST ELWYN V |
| Street | UNKNOWN |
| City | WAUPACA |
| State | WI |
| Zip Code | 54981 |
| Region | Great Lakes |
| County | Oklahoma County |
| Certificate Issue Date | 1929-06-11 |
| Last Status | Valid Registration |
| Cancellation Date | 1929-09-06 |
Deregistered Aircraft 4 of 4. This aircraft was previously assigned the N-number N55.
| Tail Number / N-Number | N55 |
| Manufacturer | FOKKER |
| Model | C-2 |
| Year Built | 1927 |
| Manufacturer's Serial Number | 704 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 11 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 3 engines |
| Type of Registrant | Corporation |
| Owner Name | PAN AMERICAN AIRWAYS INC |
| Street | 50 E 42ND ST |
| City | NEW YORK CITY |
| State | NY |
| Zip Code | 10017 |
| Region | Eastern |
| County | Oklahoma County |
| Certificate Issue Date | 1928-04-08 |
| Last Status | Valid Registration |
| Cancellation Date | 1928-08-15 |