Single-engine piston

N171S

2017 Homebuilt Evolution

Registered No accidents on file
Built
2017
Serial
EVO-0079
Class
Single-engine piston
Engines
Pratt & Whitney PT6A series
Status
Current as of October 2026
Registered owner
Cotterkey N171S LLC (LLC)
Based
Phoenix, AZ
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Registration record

N171S on the FAA register

Type
2017 Homebuilt Evolution
Serial
EVO-0079
Engines
Pratt & Whitney PT6A series
Registered owner
Cotterkey N171S LLC
Phoenix, AZ
Certificate issued
2025-02-25
Airworthiness date
2020-12-27
Registration expires
2032-02-29
Airworthiness class
Experimental · amateur-built
Mode S (hex)
A11E74
Mode S (octal)
50217164
Seats (type)
4
Weight class
up to 12,499 lb
Kit
Lancair Intl Inc EVOLUTION
Status
Current as of October 2026
Registry history

Timeline

  • 2032-02-29
    Registration expires (renewal due).
  • 2025-02-25
    Certificate of registration issued as N171S to the current registrant.
  • 2020-12-27
    Airworthiness date on the current FAA record (experimental category (amateur-built)).
  • 2017
    Manufactured (2017).
  • 2011-06-08
    N171S previously assigned to a Beechcraft H50 (s/n HH-125); cancelled.
Overview

About N171S

N171S is a 2017 Homebuilt Evolution, serial number EVO-0079. The FAA register lists Cotterkey N171S LLC as the registrant in Phoenix, Arizona. The current certificate of registration was issued on February 25, 2025 and expires on February 29, 2032.

The FAA aircraft reference file describes the type as a single-engine piston, one Pratt & Whitney PT6A series engine and 4 seats. Its airworthiness certificate is experimental category (amateur-built), dated December 27, 2020.

No NTSB accident or incident reports and no FAA preliminary notices are on file for this airframe as N171S. 2 earlier records involve a different aircraft that carried the same N-number.

Safety record

Accident & incident history

2004-10-17 Accident · Hartwood, VA Damage: Destroyed Fatal injury NTSB · NYC05FA006
Reported aircraft: Beechcraft H50 — a different aircraft that carried the N171S registration before this airframe.
Probable cause: The pilot's inadequate preflight preparation, which resulted in an attempted takeoff with full flaps, and subsequent loss of control.
1991-07-14 Accident · Hartwood, VA Damage: Substantial Minor injury NTSB · BFO91LA073
Reported aircraft: Beechcraft H50 — a different aircraft that carried the N171S registration before this airframe.
Probable cause: THE PARACHUTIST FAILURE TO PROPERLY MONITOR AND SECURE HIS RELEASE HANDLE TO PROTECT AGAINST ACCIDENTAL PARACHUTE DEPLOYMENT.

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 Arizona· 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.