| Tail Number / N-Number | N13904 |
| Manufacturer | PIPER |
| Model | PA-18-150 |
| Year Built | 1971 |
| Manufacturer's Serial Number | 18-8970 |
| 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 | 97 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | ST LOUIS SOARING ASSOC INC |
| Street | 9512 DAVID SCOTT DR |
| City | SAINT LOUIS |
| State | MO |
| Zip Code | 63126-2504 |
| Region | Central |
| County | St. Louis city |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1971-10-11 |
| Certificate Issue Date | 1973-07-11 |
| Last Action Date | 2020-06-08 |
| Expiration Date | 2027-11-30 |
| Status | Valid Registration |
| Mode S Code | 50117425 |
| Mode S Code Hex | A09F15 |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N13904.
| Tail Number / N-Number | N13904 |
| Manufacturer | NORTH AMERICAN |
| Model | GA-43J |
| Year Built | 1934 |
| Manufacturer's Serial Number | 2205 |
| Aircraft Type | Fixed wing single engine |
| Category | Sea |
| 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 | 1 engine |
| Type of Registrant | Corporation |
| Owner Name | PAN AMERICAN AIRWAYS INC |
| Street | 135 E 42ND ST |
| City | NEW YORK CITY |
| State | NY |
| Zip Code | 10116 |
| Region | Eastern |
| County | St. Louis city |
| Certificate Issue Date | 1935-01-04 |
| Last Status | Valid Registration |
| Cancellation Date | 1935-01-21 |
| Exported To | COLOMBIA |