| Tail Number / N-Number | N21787 |
| Manufacturer | CESSNA |
| Model | 206H |
| Manufacturer's Serial Number | 20608215 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 6 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 1 engine |
| Type of Registrant | Individual |
| Owner Name | BIRCH JEROME I TRUSTEE |
| Street | PO BOX 92376 |
| City | ANCHORAGE |
| State | AK |
| Zip Code | 99509-2376 |
| Region | Alaskan |
| County | Anchorage Municipality |
| Country | US |
| Fractional Ownership | No |
| Certificate Issue Date | 2018-03-28 |
| Last Action Date | 2020-12-02 |
| Expiration Date | 2028-03-31 |
| Status | Valid Registration |
| Mode S Code | 50353423 |
| Mode S Code Hex | A1D713 |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N21787.
| Tail Number / N-Number | N21787 |
| Manufacturer | DOUGLAS |
| Model | DC3A |
| Manufacturer's Serial Number | 2186 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 32 seats |
| Weight Class | CLASS 3 (20,000+ pounds gross take off weight) |
| Number of Engines | 2 engines |
| Average Cruising Speed | 144 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | INTERSTATE AIR SERVICE CORP |
| Street | PO BOX 6007 LOIZA STATION |
| City | SANTURCE |
| State | PR |
| Zip Code | 00914 |
| Region | Southern |
| County | Anchorage Municipality |
| Country | RQ |
| Certificate Issue Date | 1968-11-04 |
| Last Status | Valid Registration |
| Cancellation Date | 1977-07-14 |