FAA Aircraft Registry · Live Lookup · As of Apr 28, 2026

N421EF — Alexander Schleicher Gmbh & ASK 21

Rendered live from the FAA Aircraft Registry (refreshed weekly). This tail has no NTSB events or airworthiness directives indexed against it — type-level history is on the type page below.

Registration

Registrant

SOARING SOCIETY OF BOULDER

Registrant Type

Corporation

Location

BOULDER, CO

Status

Registration Valid

Certificate Issued

Oct 23, 2014

Airworthiness Date

Aug 29, 2013

Registration Expires

Oct 31, 2027

Last Action

Mar 24, 2023

Aircraft

Serial Number

21905

Year Manufactured

2013

Aircraft Type

Glider

Certification

Standard (+1 flag)

Engine

NONE NONE

Engines / Seats

— / 2

Weight Class

CLASS 1

Mode S (Hex)

A4FFC0

Type History

Alexander Schleicher Gmbh & ASK 21 type page → — 26 registered · 3 NTSB records · 0 airworthiness directives

Live position via ICAO24 A4FFC0

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