NASA-National Aeronautics & Space Administration currently operates 2 S-3's. You can find the details of each aircraft, including registration, listed below.
| Registration | Type | Status | Delivery Date | |
|---|---|---|---|---|
 |
159746 | S-3B Viking | Active | 00.1.2016 |
|
NASA 606 (N606NA | S-3B Viking | Active | 00.3.2014 |