Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N278C.
| Tail Number / N-Number | N278C |
| Manufacturer | SEIPP STEPHEN |
| Model | EXEC 90 |
| Year Built | 1994 |
| Manufacturer's Serial Number | 5228 |
| Aircraft Type | Rotorcraft |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 2 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | ROTORWAY |
| Engine Model | RW-100 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 100 hp (75 kW) |
| Type of Registrant | Individual |
| Owner Name | OLSEN THEODORE P |
| Street | 1120 LOVELAND LN |
| City | VIRGINIA BEACH |
| State | VA |
| Zip Code | 23454-5644 |
| Country | US |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 1995-09-26 |
| Certificate Issue Date | 2007-01-30 |
| Last Action Date | 2010-01-19 |
| Last Status | Registration Expired – Pending Cancellation |
| Cancellation Date | 2018-01-17 |
| Mode S Code | 50542146 |
| Mode S Code Hex | A2C466 |