N171S - 2017 Mark Rock Evolution Aircraft Registration

BPAT

2017 MARK ROCK EVOLUTION

Aircraft Description

N171S is a 2017 Mark Rock EVOLUTION, a single-engine reciprocating (piston) aircraft registered to Cotterkey N171S LLC in Phoenix, AZ. This aircraft holds a experimental airworthiness certificate issued by the Federal Aviation Administration on December 27, 2020. The registration certificate was issued on February 25, 2025. The registration is set to expire on February 29, 2032. Powered by a P&w PT6A SERIES engine producing 500 horsepower, N171S is. The aircraft's Mode S transponder code is A11E74 (hex), used for ADS-B identification and flight tracking. N171S was last tracked by AviatorDB near Phoenix Deer Valley Airport (KDVT) on March 24, 2026. The FAA registry record for N171S was last updated on February 25, 2025. AviatorDB monitors aircraft positions through ADS-B surveillance data and updates records as new position data is received.

Mark Rock is an aircraft manufacturer with aircraft registered in the FAA database tracked by AviatorDB. AviatorDB tracks 1 Mark Rock aircraft currently registered in the FAA database, including the EVOLUTION model.

AviatorDB has found no NTSB accident or incident reports involving N171S. AviatorDB cross-references all FAA registration data with NTSB accident and incident reports, providing a comprehensive safety overview for every registered aircraft in the United States.

Model Year
2017
Manufacturer
MARK ROCK
Model
EVOLUTION
Type Aircraft
Fixed Wing Single Engine
ICAO Type Code
BPATBearhawk Patrol
Weight Class
Up to 12,500 lbs
Airworthiness Date
December 27, 2020
Classification
Experimental 2 Category
Type Registration
LLC
Status
Valid Registration
Cert Issue Date
February 25, 2025

Registered Owner

Name
COTTERKEY N171S LLC
Address
PO BOX 35800
City
PHOENIX
State / Zip Code
Arizona85069-5800
Country
United States

Powerplant & Avionics

Engine Type
Reciprocating
Number of Engines
1
Engine Manufacturer
P&W
Engine Model
PT6A SERIES
Horsepower
500 HP
Mode S Code (Oct)
50217164
Mode S Code (Hex)
A11E74

Additional Details

Registration
N171S
Serial Number
EVO-0079
Number of Engines
1
Number of Seats
4
Expiration Date
February 29, 2032
Last Action Date
February 25, 2025
Last Update Date
January 19, 2026
Unique ID
01250303

Last Known Position

Date
March 24, 2026 (UTC 21:30:38)
Airport
Latitude
32.810785
Longitude
-117.135754

Data Source

Data provided by the US Federal Aviation Administration. View on FAA.gov

Last updated: 2026-04-01 01:32:20 UTC