| Tail Number / N-Number | N203DM |
| Manufacturer | PIPER |
| Model | PA-23-250 |
| Year Built | 1966 |
| Manufacturer's Serial Number | 27-3461 |
| Aircraft Type | Fixed wing multi 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) |
| Engine Manufacturer | LYCOMING |
| Engine Model | IO-540 SER |
| Engine Type | Reciprocating |
| Number of Engines | 2 engines |
| Horsepower per Engine | 300 hp (224 kW) |
| Total Horsepower | 600 hp (448 kW) |
| Average Cruising Speed | 150 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | DELAWARE TRUST CO TRUSTEE |
| Street | 251 LITTLE FALLS DR |
| City | WILMINGTON |
| State | DE |
| Zip Code | 19808-1674 |
| Region | Eastern |
| County | New Castle County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Restricted |
| Airworthiness Date | 2011-08-23 |
| Certificate Issue Date | 2017-10-16 |
| Last Action Date | 2020-12-08 |
| Expiration Date | 2027-10-31 |
| Status | Valid Registration |
| Mode S Code | 50316577 |
| Mode S Code Hex | A19D7F |
Deregistered Aircraft 1 of 2. This aircraft was previously assigned the N-number N203DM.
| Tail Number / N-Number | N203DM |
| Manufacturer | AIR TRACTOR INC |
| Model | AT-402A |
| Year Built | 1992 |
| Manufacturer's Serial Number | 402A-0869 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 1 seat |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | P&W |
| Engine Model | PT6A SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 500 hp (373 kW) |
| Type of Registrant | Corporation |
| Owner Name | HELM FLYING SER INC |
| Street | PO BOX 251 |
| City | HARVEY |
| State | ND |
| Zip Code | 58341 |
| County | New Castle County |
| Country | US |
| Airworthiness Classification | Restricted |
| Airworthiness Date | 1992-05-06 |
| Certificate Issue Date | 1992-07-24 |
| Last Action Date | 2007-07-17 |
| Last Status | The Triennial Aircraft Registration form was mailed and has not been returned by the Post Office |
| Cancellation Date | 2007-08-23 |
Deregistered Aircraft 2 of 2. This aircraft was previously assigned the N-number N203DM.
| Tail Number / N-Number | N203DM |
| Manufacturer | DEHAVILLAND |
| Model | DH 112 SEA VENOM |
| Manufacturer's Serial Number | J1758 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 2 seats |
| Weight Class | CLASS 2 (12,500 - 19,999 pounds gross take off weight) |
| Number of Engines | 1 engine |
| County | New Castle County |
| Last Status | N-Number Assigned – but has not yet been registered |
| Cancellation Date | 1988-04-14 |