| Tail Number / N-Number | N600SA |
| Manufacturer | ALEXANDER SCHLEICHER GMBH & CO |
| Model | ASK 21 |
| Year Built | 2011 |
| Manufacturer's Serial Number | 21888 |
| Aircraft Type | Glider |
| 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 | NONE |
| Engine Model | NONE |
| Number of Engines | 0 engines |
| Type of Registrant | Corporation |
| Owner Name | SOUTHERN CALIFORNIA SOARING ACADEMY INC |
| Street | 24307 MAGIC MOUNTAIN PKWY STE 513 |
| City | VALENCIA |
| State | CA |
| Zip Code | 91355-3402 |
| Region | Western-Pacific |
| County | Los Angeles County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 2012-01-13 |
| Certificate Issue Date | 2012-02-10 |
| Last Action Date | 2020-10-02 |
| Expiration Date | 2028-02-29 |
| Status | Valid Registration |
| Mode S Code | 51744320 |
| Mode S Code Hex | A7C8D0 |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N600SA.
| Tail Number / N-Number | N600SA |
| Manufacturer | BELLANCA |
| Model | 17-30A |
| Year Built | 1973 |
| Manufacturer's Serial Number | 73-30547 |
| 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 | CONT MOTOR |
| Engine Model | IO 520 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 285 hp (213 kW) |
| Average Cruising Speed | 142 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | SIERRA ALPHA GROUP LLC |
| Street | 115 BARNACLE CT |
| City | MIDDLETOWN |
| State | DE |
| Zip Code | 19709-9178 |
| County | Los Angeles County |
| Country | US |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1973-03-12 |
| Certificate Issue Date | 2008-12-18 |
| Last Action Date | 2008-12-18 |
| Last Status | Valid Registration |
| Cancellation Date | 2009-01-15 |