| Tail Number / N-Number | N74SL |
| Manufacturer | SCHEMPP-HIRTH |
| Model | NIMBUS 3T |
| Manufacturer's Serial Number | 20 |
| Aircraft Type | Glider |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 1 seat |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | AMA/EXPR |
| Engine Model | UNKNOWN ENG |
| Number of Engines | 0 engines |
| Type of Registrant | Individual |
| Owner Name | LIGNAN CHRISTIAN |
| Street | 3400 ROSEMARY AVE |
| City | GLENDALE |
| State | CA |
| Zip Code | 91208-1511 |
| Region | Western-Pacific |
| County | Los Angeles County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 1985-07-05 |
| Certificate Issue Date | 2017-03-17 |
| Last Action Date | 2022-10-20 |
| Expiration Date | 2030-03-31 |
| Status | Valid Registration |
| Mode S Code | 52370714 |
| Mode S Code Hex | A9F1CC |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N74SL.
| Tail Number / N-Number | N74SL |
| Manufacturer | SPRING LAKE PUBLIC SCHOOLS |
| Model | ACRO SPORT |
| Manufacturer's Serial Number | AS-538-SL |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 1 seat |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 1 engine |
| Average Cruising Speed | 85 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | SPRING LAKE PUBLIC SCHOOLS |
| Street | 345 HAMMOND ST |
| City | SPRING LAKE |
| State | MI |
| Zip Code | 49456 |
| Region | Great Lakes |
| County | Los Angeles County |
| Last Status | Valid Registration |
| Cancellation Date | 1977-02-03 |