Single-engine piston

N9980

Homebuilt SLING 4 TSI

Registered No accidents on file
Built
—
Serial
633SK
Class
Single-engine piston
Engines
1
Status
Current as of October 2026
Registered owner
Individual · sign in to see
Based
Monkton, MD
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Registration record

N9980 on the FAA register

Type
Homebuilt SLING 4 TSI
Serial
633SK
Engines
1
Registered owner
Individual — the name of an individual registrant is shown to signed-in users. Sign in
Monkton, MD
Certificate issued
2026-07-01
Airworthiness date
—
Registration expires
2033-07-31
Airworthiness class
—
Mode S (hex)
ADF2B3
Mode S (octal)
53371263
Seats (type)
4
Weight class
up to 12,499 lb
Kit
Airplane Factory Inc SLING TSI
Status
Current as of October 2026
Registry history

Timeline

  • 2033-07-31
    Registration expires (renewal due).
  • 2026-07-01
    Certificate of registration issued as N9980 to the current registrant.
  • 1981-10-13
    N9980 previously assigned to a Beechcraft C-45 (s/n 39980); cancelled.
  • 1931-07-28
    N9980 previously assigned to a Travel Air S-6000-B (s/n 1076); cancelled.
Overview

About N9980

N9980 is a Homebuilt SLING 4 TSI, serial number 633SK. It is registered to an individual in Monkton, Maryland. The current certificate of registration was issued on July 1, 2026 and expires on July 31, 2033.

The FAA aircraft reference file describes the type as a single-engine piston and 4 seats.

No NTSB accident or incident reports and no FAA preliminary notices are on file for this airframe as N9980. 1 earlier record involves a different aircraft that carried the same N-number.

Safety record

Accident & incident history

1968-02-15 Accident · Speedway,Ind, 14 Damage: Substantial NTSB · 3 0309
Reported aircraft: Erco 415-D — a different aircraft that carried the N9980 registration before this airframe.

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

Same state

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Browse: Aircraft registered in Maryland· 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.