BRUEY WILLIAM P· ICAO24 a11e02· last seen 20d ago

N171ML is a Cozy Aircraft COZY IV, a single-engine piston aircraft operated by BRUEY WILLIAM P. SkyMeter has tracked 64 flights totalling 91 hours of airtime via ADS-B. The most frequent segment is KHHR to KHHR. Service window in our records spans 372 days. Of those flights, 18 (28.1%) carry at least one detected incident: a go-around, unstable approach, stall warning, or runway excursion. The Cozy Aircraft COZY IV has a maximum takeoff weight of 1,450 lb, light wake category.

About the Cozy Aircraft COZY IV

The Cozy is a four-seat homebuilt aircraft that emerged in the 1980s as Nat Puffer's answer to Burt Rutan's two-seat Long-EZ. Retaining the distinctive canard configuration and composite construction of its predecessor, the Cozy stretched the fuselage to accommodate a second row of seats while preserving the efficient aerodynamics and cross-country capability that made Rutan's designs legendary among experimental builders. The aircraft is sold as plans and requires builders to fabricate components from fiberglass, foam, and epoxy, a process that typically takes several thousand hours but results in an airplane with remarkable fuel efficiency and cruise speeds around 180 knots on a modest 180-horsepower Lycoming engine.

What sets the Cozy apart in the homebuilt world is its combination of true four-seat capacity with Long-EZ performance, a rare achievement in the experimental category where most fast aircraft sacrifice useful load for speed. The canard foreplane provides natural stall resistance (the forward wing stalls before the main wing, automatically pitching the nose down for recovery), making the design famously docile despite its unconventional appearance. The pusher propeller configuration keeps the engine noise behind the cabin and eliminates the need for a complex retractable gear, contributing to the type's reputation for low maintenance and high dispatch reliability among owner-builders.

SkyMeter has tracked flights across airframes and operators, with the largest observed operator.

FLIGHTS
64
all time
FLOWN HOURS
91
tracked time
📍
AIRPORTS VISITED
20
unique
📡
CALLSIGNS
1
25 routes
📅
SERVICE PERIOD
06/14/2025 → 06/21/2026
first → last
INCIDENT RATE
28.1%
18 flagged

Top routes

By flight count

10
3
2
1
1
1
1
1
1
1
1

Flight numbers

Most-flown by this airframe

1

Aircraft specifications

Cozy Aircraft COZY IV

Engines
Single Piston
Vref (approach)
70 kt
MTOW
1,450 lb
Wake category
L

Recent flights

Newest 48 operations of N171ML

48
06/21/2026
1h 36m
No alerts
06/19/2026
1h 32m
No alerts
05/25/2026
2h 25m
No alerts
05/23/2026
1h 4m
△ Unstable approach
05/22/2026
1h 15m
No alerts
05/22/2026
2h 19m
△ Unstable approach
04/20/2026
48m
No alerts
04/18/2026
1h 0m
△ Unstable approach
04/07/2026
28m
△ Unstable approach
02/15/2026
1h 45m
△ Unstable approach
02/14/2026
1h 41m
No alerts
02/13/2026
56m
△ Unstable approach
02/02/2026
27m
No alerts
11/23/2025
46m
△ Unstable approach
11/22/2025
40m
No alerts
11/10/2025
5m
No alerts
11/09/2025
1h 56m
No alerts
11/09/2025
20m
No alerts
11/06/2025
22m
No alerts
11/06/2025
2h 18m
No alerts
10/28/2025
1h 13m
No alerts
10/27/2025
46m
No alerts
10/27/2025
1h 59m
No alerts
10/27/2025
16m
△ Unstable approach
10/26/2025
58m
No alerts
10/26/2025
41m
No alerts
10/26/2025
1h 58m
No alerts
10/19/2025
2h 17m
△ Unstable approach
10/18/2025
1h 1m
△ Unstable approach
10/17/2025
1h 28m
No alerts
10/17/2025
2h 30m
△ Unstable approach
09/28/2025
55m
No alerts
08/24/2025
36m
No alerts
08/06/2025
2h 1m
No alerts
08/04/2025
55m
No alerts
08/03/2025
1h 17m
No alerts
08/03/2025
2h 13m
No alerts
06/29/2025
43m
No alerts
06/29/2025
33m
No alerts
06/29/2025
2h 14m
No alerts
06/28/2025
34m
No alerts
06/28/2025
28m
No alerts
06/28/2025
2h 4m
No alerts
06/27/2025
12m
No alerts
06/15/2025
2h 13m
No alerts
06/14/2025
35m
No alerts
06/14/2025
36m
No alerts
06/14/2025
2h 13m
No alerts
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