Glider

N521SL

2006 Schleicher ASK-21

Registered No accidents on file
Built
2006
Serial
21809
Class
Glider
Engines
None NONE
Status
Current as of October 2026
Registered owner
Nfm Enterprises LLC (LLC)
Based
Wurtsboro, NY
Registration record

N521SL on the FAA register

Type
2006 Schleicher ASK-21
Serial
21809
Engines
None NONE
Registered owner
Nfm Enterprises LLC
Wurtsboro, NY
Certificate issued
2020-08-20
Airworthiness date
2006-03-30
Registration expires
2027-08-31
Airworthiness class
Standard · normal
Mode S (hex)
A68E40
Mode S (octal)
51507100
Seats (type)
2
Weight class
up to 12,499 lb
Status
Current as of October 2026
Registry history

Timeline

  • 2027-08-31
    Registration expires (renewal due).
  • 2020-08-20
    Certificate of registration issued as N521SL.
  • 2006-03-30
    Airworthiness date on the current FAA record (standard category (normal)).
Overview

About N521SL

N521SL is a 2006 Schleicher ASK-21, serial number 21809. The FAA register lists Nfm Enterprises LLC as the registrant in Wurtsboro, New York. The current certificate of registration was issued on August 20, 2020 and expires on August 31, 2027.

The FAA aircraft reference file describes the type as a glider and 2 seats. Its airworthiness certificate is standard category (normal), dated March 30, 2006.

No NTSB accident or incident reports and no FAA preliminary notices are on file for N521SL.

Safety record

Accident & incident history

✓ No NTSB accident or incident reports and no FAA preliminary notices on file for N521SL.

Sources: NTSB aviation accident database and CAROL case system, FAA preliminary accident & incident notices. Search accident records

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Browse: Aircraft registered in New York· Registry by state· FAA registry stats

Data: FAA Aircraft Registry (October 2026), including deregistered aircraft; NTSB and FAA accident data; fyiAero listing history. Individual owners' names are shown to signed-in users and street addresses are never shown. Type figures are published specifications, not this aircraft's.