Single-engine piston

N89ST

2024 Homebuilt SLING TSI

Registered No accidents on file
Built
2024
Serial
175SK
Class
Single-engine piston
Engines
Rotax 915 IS
Status
Current as of October 2026
Registered owner
Sierra Tango Aviation LLC (LLC)
Based
Colleyville, TX
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Registration record

N89ST on the FAA register

Type
2024 Homebuilt SLING TSI
Serial
175SK
Engines
Rotax 915 IS
Registered owner
Sierra Tango Aviation LLC
Colleyville, TX
Certificate issued
2024-09-26
Airworthiness date
2024-06-20
Registration expires
2031-09-30
Airworthiness class
Experimental · amateur-built
Mode S (hex)
AC449D
Mode S (octal)
53042235
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

  • 2031-09-30
    Registration expires (renewal due).
  • 2024-09-26
    Certificate of registration issued as N89ST to the current registrant.
  • 2024-06-20
    Airworthiness date on the current FAA record (experimental category (amateur-built)).
  • 1993-05-04
    N89ST previously assigned to a Homebuilt Laco 145 (s/n JT1); cancelled.
Overview

About N89ST

N89ST is a 2024 Homebuilt SLING TSI, serial number 175SK. The FAA register lists Sierra Tango Aviation LLC as the registrant in Colleyville, Texas. The current certificate of registration was issued on September 26, 2024 and expires on September 30, 2031.

The FAA aircraft reference file describes the type as a single-engine piston, one Rotax 915 IS engine and 4 seats. Its airworthiness certificate is experimental category (amateur-built), dated June 20, 2024.

No NTSB accident or incident reports and no FAA preliminary notices are on file for this airframe as N89ST. 1 earlier record involves a different aircraft that carried the same N-number.

Safety record

Accident & incident history

1993-04-03 Accident · Tuskegee, AL Damage: Substantial NTSB · ATL93LA069
Reported aircraft: John Thomason Laco 145 — a different aircraft that carried the N89ST registration before this airframe.
Probable cause: THE OVERLOAD FAILURE OF THE TAIL WHEEL LEAF SPRINGS, WHICH RESULTED IN A LOSS OF DIRECTIONAL CONTROL DURING THE LANDING ROLL.

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 Texas· 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.