Deregistered Aircraft 1 of 2. This aircraft was previously assigned the N-number N99951.
| Tail Number / N-Number | N99951 |
| Manufacturer | LET |
| Model | BLANIK L-13 |
| Year Built | 1974 |
| Manufacturer's Serial Number | 025824 |
| Aircraft Type | Glider |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 2 seats |
| 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 | 45 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | CACHE VALLEY SOARING ASSOCIATION |
| Street | PO BOX 4055 |
| City | LOGAN |
| State | UT |
| Zip Code | 84323-4055 |
| Country | US |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1974-06-12 |
| Certificate Issue Date | 2003-09-11 |
| Last Action Date | 2009-09-28 |
| Last Status | Registration Expired – Pending Cancellation |
| Cancellation Date | 2013-07-29 |
| Mode S Code | 53373463 |
| Mode S Code Hex | ADF733 |
Deregistered Aircraft 2 of 2. This aircraft was previously assigned the N-number N99951.
| Tail Number / N-Number | N99951 |
| Manufacturer | ERCO |
| Model | 415-C |
| Manufacturer's Serial Number | 2574 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 2 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 1 engine |
| Average Cruising Speed | 88 miles per hour |
| Type of Registrant | Individual |
| Owner Name | ICE CECIL G |
| Street | BOX 13 |
| City | PIERRE |
| State | SD |
| Zip Code | 57201 |
| Region | Great Lakes |
| Certificate Issue Date | 1964-03-31 |
| Last Status | Valid Registration |
| Cancellation Date | 1964-11-09 |
| Exported To | CANADA |
| Mode S Code | 53373463 |
| Mode S Code Hex | ADF733 |