HOWARD MARK STUART· ICAO24 a8a783· last seen 6d ago

N657J is a Jabiru Aircraft J430, a single-engine piston aircraft operated by HOWARD MARK STUART. SkyMeter has tracked 422 flights totalling 135 hours of airtime via ADS-B across 2 callsigns. The most frequent segment is JY30 to KPNE. Service window in our records spans 405 days. Of those flights, 32 (7.6%) carry at least one detected incident: a go-around, unstable approach, stall warning, or runway excursion. The Jabiru Aircraft J430 has a maximum takeoff weight of 1,543 lb, light wake category.

About the Jabiru Aircraft J430

The Jabiru J430 is an Australian light sport aircraft that represents the larger end of Jabiru Aircraft's all-composite lineup, designed for the growing LSA market in the early 2000s. Built in Bundaberg, Queensland, the J430 features a distinctive high-wing configuration with a roomy side-by-side cockpit and tricycle landing gear, powered by Jabiru's own air-cooled 2200cc flat-four engine producing 85 horsepower. The aircraft's composite construction keeps empty weight around 660 pounds, allowing a useful load of roughly 880 pounds while staying within LSA limits in many jurisdictions.

With a cruise speed around 100 knots and fuel burn of just 4-5 gallons per hour, the J430 offers economical cross-country capability for training and recreational flying. The type has found favor with flight schools and private owners worldwide, particularly in Australia, Europe, and North America, where its simple systems and relatively spacious cabin make it competitive with American LSA designs. The J430's operating envelope is typical for the category: never-exceed speed of 122 knots, normal operations below 108 knots, and gentle stall characteristics with full-flap stall speed around 39 knots making it forgiving for student pilots.

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

FLIGHTS
422
all time
FLOWN HOURS
135
tracked time
📍
AIRPORTS VISITED
82
unique
📡
CALLSIGNS
2
103 routes
📅
SERVICE PERIOD
06/07/2025 → 07/18/2026
first → last
INCIDENT RATE
7.6%
32 flagged

Top routes

By flight count

10
10
9
8
8
6
5
5
4
3
3

Flight numbers

Most-flown by this airframe

2

Aircraft specifications

Jabiru Aircraft J430

Engines
Single Piston
Vref (approach)
55 kt
MTOW
1,543 lb
Wake category
L

Recent flights

Newest 50 operations of N657J

50
07/18/2026
12m
No alerts
07/18/2026
14m
No alerts
07/16/2026
15m
No alerts
07/16/2026
9m
No alerts
07/14/2026
10m
No alerts
07/14/2026
14m
No alerts
07/11/2026
10m
No alerts
07/10/2026
28m
No alerts
07/10/2026
7m
No alerts
07/10/2026
11m
No alerts
07/09/2026
11m
No alerts
07/09/2026
8m
△ Low approach-stability score
07/08/2026
2h 28m
△ Low approach-stability score
07/07/2026
47m
No alerts
06/30/2026
6m
No alerts
06/30/2026
11m
No alerts
06/30/2026
15m
No alerts
06/29/2026
18m
No alerts
06/29/2026
13m
No alerts
06/26/2026
10m
No alerts
06/26/2026
5m
No alerts
06/25/2026
21m
No alerts
06/24/2026
15m
No alerts
06/21/2026
8m
No alerts
06/16/2026
21m
No alerts
06/15/2026
29m
△ Low approach-stability score
06/15/2026
32m
No alerts
06/15/2026
4h 41m
No alerts
06/15/2026
41m
No alerts
06/14/2026
17m
No alerts
06/14/2026
8m
No alerts
06/14/2026
5m
No alerts
06/13/2026
32m
No alerts
06/13/2026
12m
No alerts
06/12/2026
42m
No alerts
06/10/2026
16m
No alerts
06/10/2026
5m
No alerts
06/07/2026
8m
No alerts
06/07/2026
18m
No alerts
06/05/2026
4m
No alerts
06/05/2026
35m
No alerts
06/04/2026
22m
No alerts
06/03/2026
17m
No alerts
06/03/2026
34m
No alerts
05/31/2026
9m
No alerts
05/31/2026
9m
No alerts
05/29/2026
10m
No alerts
05/29/2026
15m
No alerts
05/29/2026
13m
No alerts
05/29/2026
22m
No alerts
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