· ICAO24 486426· last seen 4d ago

PH-4U9 is a TL Ultralight TL-3000 Sirius, a single-engine piston aircraft — likely a private operator. SkyMeter has tracked 1,276 flights totalling 937 hours of airtime via ADS-B. The most frequent segment is NL-0024 to EHKD. Service window in our records spans 399 days. Of those flights, 48 (3.8%) carry at least one detected incident — go-around, unstable approach, stall warning, or runway excursion. The TL Ultralight TL-3000 Sirius has a maximum takeoff weight of 1,322 lb.

About the TL Ultralight TL-3000 Sirius

The TL-3000 Sirius is a Czech-designed two-seat light sport aircraft that has carved out a niche in the European ultralight and LSA markets since its introduction in the early 2000s. Built by TL Ultralight in the Czech Republic, the Sirius features a low-wing configuration with a composite fuselage and a distinctive bubble canopy that provides exceptional visibility for both occupants. The aircraft is certified under both European ultralight regulations and the FAA's Light Sport Aircraft category, making it eligible for sport pilot operations in the United States while remaining popular across Europe for training and personal flying.

Powered by a single Rotax 912 series engine producing 100 horsepower, the TL-3000 delivers respectable cruise speeds around 120 knots while maintaining excellent fuel economy and a maximum takeoff weight right at the 1,320-pound LSA limit. Its stall speed of just 37 knots with full flaps makes it forgiving for student pilots, while the never-exceed speed of 162 knots gives experienced pilots enough performance envelope for cross-country travel. The type's relatively wide cabin and side-by-side seating arrangement have made it a favorite among flight schools looking for a modern alternative to aging Cessna and Piper trainers.

The Sirius competes directly with other European LSA designs like the Czech Sport Aircraft SportCruiser and the Flight Design CT series, offering similar performance in a slightly more spacious package. Its composite construction keeps maintenance relatively straightforward, though parts availability outside Europe can occasionally pose challenges for North American operators. The aircraft's handling characteristics are generally praised as responsive and well-harmonized, with light control forces that appeal to pilots transitioning from ultralights while still providing enough feedback for instrument training.

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

FLIGHTS
1,276
all time
FLOWN HOURS
937
tracked time
📍
AIRPORTS VISITED
23
unique
📡
CALLSIGNS
1
40 routes
📅
SERVICE PERIOD
05/31/2025 → 07/04/2026
first → last
INCIDENT RATE
3.8%
48 flagged

Top routes

By flight count

10
177
163
8
7
4
4
2
2
1
1

Flight numbers

Most-flown by this airframe

1

Aircraft specifications

TL Ultralight TL-3000 Sirius

Engines
Single Piston
Vref (approach)
50 kt
MTOW
1,322 lb
Wake category
Light

Recent flights

Newest 50 operations of PH-4U9

50
07/04/2026
58m
△ Unstable approach
07/04/2026
1h 11m
No alerts
07/04/2026
48m
No alerts
07/01/2026
52m
No alerts
07/01/2026
45m
No alerts
07/01/2026
41m
No alerts
07/01/2026
53m
No alerts
06/30/2026
18m
No alerts
06/30/2026
27m
No alerts
06/30/2026
11m
No alerts
06/30/2026
40m
No alerts
06/30/2026
46m
No alerts
06/30/2026
50m
No alerts
06/28/2026
1h 1m
No alerts
06/28/2026
1h 28m
△ Unstable approach
06/28/2026
3h 4m
No alerts
06/27/2026
1h 56m
No alerts
06/26/2026
1h 42m
No alerts
06/26/2026
2h 20m
No alerts
06/25/2026
6m
No alerts
06/25/2026
9m
No alerts
06/25/2026
8m
No alerts
06/25/2026
10m
No alerts
06/25/2026
56m
No alerts
06/25/2026
47m
No alerts
06/24/2026
40m
No alerts
06/24/2026
22m
No alerts
06/24/2026
21m
No alerts
06/24/2026
47m
△ Unstable approach
06/24/2026
46m
No alerts
06/24/2026
45m
No alerts
06/23/2026
29m
No alerts
06/23/2026
26m
No alerts
06/23/2026
34m
No alerts
06/23/2026
49m
No alerts
06/23/2026
34m
△ Unstable approach
06/23/2026
33m
No alerts
06/22/2026
1h 41m
No alerts
06/20/2026
35m
No alerts
06/18/2026
42m
No alerts
06/18/2026
54m
No alerts
06/17/2026
47m
No alerts
06/16/2026
50m
No alerts
06/10/2026
54m
No alerts
06/10/2026
39m
No alerts
06/10/2026
10m
No alerts
06/10/2026
12m
No alerts
06/10/2026
1h 9m
△ Unstable approach
06/10/2026
38m
No alerts
06/07/2026
47m
△ Unstable approach
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