N421SL is a 2006 Schleicher ASK-21 (glider) with serial number 21808, registered in Tehachapi, CA. Its FAA registration is valid and runs until Sep 30, 2033; the renewal window opens on Mar 30, 2033. Its airworthiness certificate is in the standard class (normal), issued Mar 30, 2006. It is one of 43 ASK-21 aircraft in the FAA registry, 6 of them registered in California. The NTSB accident database lists one record for this airframe since 2008, the latest on Sep 20, 2014.
Registration
- FAA status
- Valid registration
- Expires
- Sep 30, 2033
- Registrant type
- Individual
- Registered owner
- Individual owner, name not shown
- Location
- Tehachapi, CA
- Local FAA office (FSDO)
- Fresno FSDO (FAT FSDO) · (559) 297-2150
- Certificate issued
- Sep 30, 2026
- Last FAA action
- Sep 30, 2026
- Mode S code (hex)
- A500F1
- Mode S code (octal)
- 51200361
- Official record
- registry.faa.gov
Aircraft
Public airports near Tehachapi
| Airport | ID | Distance | Tower | Fuel |
|---|---|---|---|---|
| Tehachapi Municipal Tehachapi, CA | KTSP | <1 mi | Non-towered | 100LL, A |
| Mountain Valley Tehachapi, CA | L94 | 3 mi | Non-towered | - |
| Mojave Air & Space Port/Rutan Field Mojave, CA | KMHV | 18 mi | Towered | 100LL, A, A+ |
Straight-line distance from the registration city, from the FAA airport directory (NASR). The registry does not say where an aircraft is based.
NTSB accident and incident records
| Date | Place | Aircraft (as NTSB recorded it) | Damage | Highest injury | NTSB no. |
|---|---|---|---|---|---|
| Sep 20, 2014 | Wurtsboro, NY | Schleicher ASK 21 this airframe | Substantial | Minor | ERA14CA453 |
From the NTSB aviation accident database (events since 2008, data through Sep 29, 2026), matched by N-number. An N-number can move between aircraft, so each row is checked against the serial number on the current registration.