Registry / Alexander Schleicher Gmbh & Co / ASK 21 / N421EF

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N421EF V

Alexander Schleicher Gmbh & Co ASK 21 · 2013

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Flight history & live tracking recent positions on file

ICAO24: a4ffc0
Last known — 1 week ago N421EF
Observed 2026-06-16 09:20:11 MST
Auto-refresh • Updated 0s ago
Ground speed
Altitude (baro)
5,425 ft
Track
Squawk
Wind / OAT
Autopilot target
Lat 40.03967, Lng -105.24060
Map loads when scrolled into view …
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Aircraft Type — ACFTREF 3801539

Alexander Schleicher Gmbh & Co ASK 21
Engines: 1
Type: piston
Seats: 2
Category: Standard

Engine — CODE 00000

Manufacturer: None
Model: NONE
Type: None

FAA Registration Record

N-Number: N421EF
Serial Number: 21905
Year Manufactured: 2013
ACFTREF Code: 3801539
Engine Code: 00000
Status: V (V)
Certification: Standard – Utility
Type Aircraft: Glider (1)
Type Engine: None (0)
Source: master

Documents & resources

Commonly available reference sources for the Alexander Schleicher Gmbh & Co ASK 21. Always confirm against the manufacturer's current, authoritative publication for your specific aircraft.

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Transponder / ADS-B

Mode S (octal): 51177700
ICAO 24-bit (hex): A4FFC0

Registrant

Soaring Society Of Boulder
Po Box 17577
Boulder, CO, 803080577
FAA Region: S

Key Dates

Certificate Issued Oct 23, 2014
Airworthiness Aug 29, 2013
Expiration Oct 31, 2027
Last Activity Mar 24, 2023
Data as of Jun 22, 2026

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