| Tail Number / N-Number | N37504 |
| Manufacturer | BOEING |
| Model | 737-9 |
| Year Built | 2018 |
| Manufacturer's Serial Number | 43435 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 48 seats |
| Weight Class | CLASS 3 (20,000+ pounds gross take off weight) |
| Engine Manufacturer | CFM INTL |
| Engine Model | LEAP-1B28 SER |
| Engine Type | Turbo-fan |
| Number of Engines | 2 engines |
| Thrust per Engine | 29,317 pounds-force (130.4 kN) |
| Total Thrust | 58,634 pounds-force (260.8 kN) |
| Type of Registrant | Corporation |
| Owner Name | UNITED AIRLINES INC |
| Street | 233 S WACKER DR |
| City | CHICAGO |
| State | IL |
| Zip Code | 60606-7147 |
| Region | Great Lakes |
| County | Cook County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 2018-05-18 |
| Certificate Issue Date | 2018-05-21 |
| Last Action Date | 2021-01-06 |
| Expiration Date | 2028-05-31 |
| Status | Valid Registration |
| Mode S Code | 51044323 |
| Mode S Code Hex | A448D3 |
Deregistered Aircraft 1 of 2. This aircraft was previously assigned the N-number N37504.
| Tail Number / N-Number | N37504 |
| Manufacturer | BALLOON WORKS |
| Model | FIREFLY 6B |
| Year Built | 1984 |
| Manufacturer's Serial Number | F6B-008 |
| Aircraft Type | Balloon |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 0 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | NONE |
| Engine Model | NONE |
| Number of Engines | 0 engines |
| Average Cruising Speed | 67 miles per hour |
| Type of Registrant | Individual |
| Owner Name | VON DER GOLTZ H J DBA |
| Other Names |
|
| Street | 45 SCHOOL ST |
| City | BOSTON |
| State | MA |
| Zip Code | 02108 |
| County | Cook County |
| Country | US |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1984-03-08 |
| Certificate Issue Date | 1989-06-30 |
| Last Action Date | 2001-08-14 |
| Last Status | The Triennial Aircraft Registration form was mailed and has not been returned by the Post Office |
| Cancellation Date | 2001-11-28 |
Deregistered Aircraft 2 of 2. This aircraft was previously assigned the N-number N37504.
| Tail Number / N-Number | N37504 |
| Manufacturer | DOUGLAS |
| Model | DC-6 |
| Manufacturer's Serial Number | 42869 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 96 seats |
| Weight Class | CLASS 3 (20,000+ pounds gross take off weight) |
| Number of Engines | 4 engines |
| Average Cruising Speed | 225 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | UNITED AIR LINES INC |
| Street | 5959 SOUTH CICERO AVENUE |
| City | CHICAGO |
| State | IL |
| Zip Code | 60666 |
| Region | Great Lakes |
| County | Cook County |
| Certificate Issue Date | 1947-03-27 |
| Last Status | Valid Registration |
| Cancellation Date | 1970-01-04 |