Deregistered Aircraft 1 of 2. This aircraft was previously assigned the N-number N6187U.
| Tail Number / N-Number | N6187U |
| Manufacturer | HOLTAN RANDY H |
| Model | CHALLENGER II |
| Year Built | 1996 |
| Manufacturer's Serial Number | 0273 |
| Aircraft Type | Fixed wing single engine |
| 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 | BOMBARDIER |
| Engine Model | ROTAX (ALL) |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Type of Registrant | Individual |
| Owner Name | HOLTAN RANDY H |
| Street | 3369 HWY 5 WEST |
| City | PLENTYWOOD |
| State | MT |
| Zip Code | 59254 |
| Country | US |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 1997-06-18 |
| Certificate Issue Date | 1996-08-14 |
| Last Action Date | 2008-11-18 |
| Last Status | Registration Expired – Pending Cancellation |
| Cancellation Date | 2017-06-30 |
| Mode S Code | 52007726 |
| Mode S Code Hex | A80FD6 |
Deregistered Aircraft 2 of 2. This aircraft was previously assigned the N-number N6187U.
| Tail Number / N-Number | N6187U |
| Manufacturer | CESSNA |
| Model | TU206G |
| Manufacturer's Serial Number | U20605373 |
| 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 |
| Average Cruising Speed | 132 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | DEL RIO FLYING SERVICE INC |
| Street | PO BOX 987 |
| City | DEL RIO |
| State | TX |
| Zip Code | 78840 |
| Region | Southwestern |
| Certificate Issue Date | 1980-01-25 |
| Last Status | Valid Registration |
| Cancellation Date | 1980-01-25 |
| Exported To | MEXICO |
| Mode S Code | 52007726 |
| Mode S Code Hex | A80FD6 |