Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N956SD.
| Tail Number / N-Number | N956SD |
| Manufacturer | MCDONNELL DOUGLAS HELICOPTER |
| Model | 500N |
| Year Built | 1996 |
| Manufacturer's Serial Number | LN081 |
| Aircraft Type | Rotorcraft |
| 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 | ALLISON |
| Engine Model | 250-C20 SER |
| Engine Type | Turbo-prop |
| Number of Engines | 1 engine |
| Horsepower | 420 hp (313 kW) |
| Type of Registrant | Corporation |
| Owner Name | EXTANT AIRCRAFT CORP |
| Street | ARBYS BUSINESS CENTER 134 S 14TH ST |
| City | SAINT HELENS |
| State | OR |
| Zip Code | 97051-1831 |
| Country | US |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1996-08-26 |
| Certificate Issue Date | 2004-08-11 |
| Last Action Date | 2012-01-21 |
| Last Status | Valid Registration |
| Cancellation Date | 2013-02-14 |
| Exported To | MEXICO |
| Mode S Code | 53246205 |
| Mode S Code Hex | AD4C85 |