BUFFALO CHIP LLC· ICAO24 a4adfe· last seen 13d ago

N400PZ is an Aero-Dienst J400, a single-engine piston aircraft operated by BUFFALO CHIP LLC. SkyMeter has tracked 136 flights totalling 188 hours of airtime via ADS-B across 2 callsigns. The most frequent segment is KE45 to KO22. Service window in our records spans 384 days. Of those flights, 12 (8.8%) carry at least one detected incident — go-around, unstable approach, stall warning, or runway excursion. The Aero-Dienst J400 has a maximum takeoff weight of 2,646 lb, light wake category.

About the Aero-Dienst J400

The Aero-Dienst J400 is a German-engineered four-seat composite single built for the European light aircraft market, combining modern construction with traditional piston reliability. Developed in the early 2000s and certified under CS-23 standards, the J400 features a sleek low-wing design with retractable tricycle gear and a 180-horsepower Lycoming IO-360 engine driving a constant-speed propeller. Its composite airframe delivers respectable cruise speeds around 150 knots while maintaining docile handling characteristics suitable for private owners and flight training operations.

The type occupies a niche between legacy designs like the Piper Arrow and newer composite competitors such as the Cirrus SR20, offering European buyers a locally-produced alternative with familiar American powerplant reliability. Maximum takeoff weight of 2,646 pounds and a never-exceed speed of 165 knots place it firmly in the high-performance single-engine category, requiring appropriate pilot endorsements in most jurisdictions. The aircraft's operating envelope includes a maximum structural cruising speed of 135 knots and stall speeds of 51 knots in landing configuration, making it accessible to pilots transitioning from simpler trainers.

While production numbers remain modest compared to Cessna or Piper volumes, the J400 has found a loyal following among European owner-pilots who value its modern systems integration and efficient cross-country performance. SkyMeter has tracked flights across airframes and operators, with the largest observed operator.

FLIGHTS
136
all time
FLOWN HOURS
188
tracked time
📍
AIRPORTS VISITED
51
unique
📡
CALLSIGNS
2
52 routes
📅
SERVICE PERIOD
06/05/2025 → 06/24/2026
first → last
INCIDENT RATE
8.8%
12 flagged

Top routes

By flight count

10
1
1
1
1
1
KI12 38I
1
1
1
1
1

Flight numbers

Most-flown by this airframe

2

Aircraft specifications

Aero-Dienst J400

Engines
Single Piston
Vref (approach)
65 kt
MTOW
2,646 lb
Wake category
L

Recent flights

Newest 50 operations of N400PZ

50
06/24/2026
11m
No alerts
06/24/2026
48m
No alerts
06/23/2026
28m
No alerts
05/17/2026
42m
No alerts
05/17/2026
2h 38m
No alerts
05/16/2026
3m
No alerts
05/16/2026
6m
No alerts
05/16/2026
45m
No alerts
05/16/2026
2m
No alerts
05/16/2026
4h 0m
No alerts
04/20/2026
1h 42m
No alerts
04/20/2026
12m
No alerts
04/19/2026
1h 34m
No alerts
04/19/2026
2h 53m
No alerts
04/19/2026
1h 39m
No alerts
04/12/2026
2h 17m
No alerts
04/12/2026
2h 53m
No alerts
04/12/2026
5h 56m
No alerts
04/12/2026
4h 30m
No alerts
11/22/2025
9m
No alerts
10/10/2025
9m
No alerts
10/10/2025
9m
No alerts
10/09/2025
2h 6m
No alerts
10/09/2025
2h 32m
No alerts
10/08/2025
5h 7m
△ Unstable approach
10/08/2025
20m
No alerts
10/08/2025
9h 9m
△ Unstable approach
10/07/2025
37m
No alerts
10/07/2025
31m
No alerts
10/07/2025
4h 56m
No alerts
10/07/2025
9m
No alerts
08/10/2025
18m
No alerts
08/09/2025
52m
No alerts
08/09/2025
3h 44m
No alerts
08/09/2025
39m
No alerts
08/09/2025
46m
No alerts
08/09/2025
37m
No alerts
08/09/2025
5h 23m
No alerts
08/09/2025
33m
No alerts
08/08/2025
34m
No alerts
08/08/2025
9m
No alerts
08/08/2025
3h 20m
No alerts
08/08/2025
6h 16m
No alerts
08/02/2025
11m
No alerts
08/02/2025
13m
No alerts
07/31/2025
21m
No alerts
07/30/2025
31m
No alerts
07/30/2025
10m
No alerts
07/30/2025
4h 18m
No alerts
07/29/2025
43m
No alerts
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