| Tail Number / N-Number | N81DS |
| Manufacturer | DIAMOND AIRCRAFT IND INC |
| Model | DA 40 |
| Year Built | 2004 |
| Manufacturer's Serial Number | 40.406 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 4 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | LYCOMING |
| Engine Model | I0360 SER |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 180 hp (134 kW) |
| Type of Registrant | Corporation |
| Owner Name | MARATHON LEASING INC |
| Street | 100 FREEDOM CT |
| City | ELYRIA |
| State | OH |
| Zip Code | 44035-2245 |
| Region | Great Lakes |
| County | Lorain County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 2004-08-23 |
| Certificate Issue Date | 2007-02-05 |
| Last Action Date | 2022-07-27 |
| Expiration Date | 2029-10-31 |
| Status | Valid Registration |
| Mode S Code | 52603537 |
| Mode S Code Hex | AB075F |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N81DS.
| Tail Number / N-Number | N81DS |
| Manufacturer | RAVEN |
| Model | S55A |
| Year Built | 1981 |
| Manufacturer's Serial Number | S55A-748 |
| Aircraft Type | Balloon |
| 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 | NONE |
| Engine Model | NONE |
| Number of Engines | 0 engines |
| Average Cruising Speed | 60 miles per hour |
| Type of Registrant | Individual |
| Owner Name | BROWN CHESTER P |
| Street | 502 GROVE NE |
| City | ALBUQUERQUE |
| State | NM |
| Zip Code | 87108 |
| County | Lorain County |
| Country | US |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1981-03-04 |
| Certificate Issue Date | 1994-10-18 |
| Last Action Date | 2000-10-17 |
| Last Status | The Triennial Aircraft Registration form was mailed and has not been returned by the Post Office |
| Cancellation Date | 2002-05-15 |