| Tail Number / N-Number | N4 |
| Type of Reservation | Reserved - no fee |
| Reserving Party Name | FEDERAL AVIATION ADMINISTRATION |
| Street | PO BOX 25504 |
| City | OKLAHOMA CITY |
| State | OK |
| Zip Code | 73125-0504 |
| Date Reserved | 2003-09-18 |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N4.
| Tail Number / N-Number | N4 |
| Manufacturer | DOUGLAS AIRCRAFT CO |
| Model | 038B |
| Manufacturer's Serial Number | C-31-433 |
| Aircraft Type | Fixed wing single engine |
| Category | Amphibian |
| Builder Certification | Not 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 |
| Type of Registrant | Corporation |
| Owner Name | CIVIL AERONAUTICS AUTHORITY |
| Street | GENERAL DELIVERY |
| City | WASHINGTON |
| State | DC |
| Zip Code | 20310 |
| Region | Eastern |
| Last Status | Valid Registration |
| Cancellation Date | 1940-06-09 |