GOETZ STEPHANIE C· ICAO24 a3b8d5· last seen Jun 2026

N339SG is an Aero Vodochody L-39 Albatros, a single-engine jet operated by GOETZ STEPHANIE C. SkyMeter has tracked 118 flights totalling 84 hours of airtime via ADS-B across 2 callsigns. The most frequent segment is KVGT to KVGT. Service window in our records spans 370 days. Of those flights, 48 (40.7%) carry at least one detected incident: a go-around, unstable approach, stall warning, or runway excursion. The Aero Vodochody L-39 Albatros has a maximum takeoff weight of 10,362 lb, light wake category.

About the Aero Vodochody L-39 Albatros

The Aero Vodochody L-39 Albatros is a Czech-built subsonic jet trainer that became the most widely produced jet trainer in aviation history, with over 2,800 aircraft delivered between 1971 and 1996. Designed during the Cold War as the standard advanced trainer for Soviet bloc air forces, the L-39 replaced the earlier L-29 Delfín and introduced a more modern turbofan engine, tandem cockpit with excellent visibility, and docile handling characteristics that made it ideal for transitioning student pilots to jet operations. Its single Ivchenko AI-25TL turbofan produces 3,792 pounds of thrust, giving the aircraft a maximum speed of 466 knots and a service ceiling of 37,730 feet, while maintaining remarkably economical operating costs compared to Western contemporaries.

What distinguishes the L-39 in the 21st century is its thriving second life in civilian hands. Following the dissolution of the Warsaw Pact, hundreds of surplus Albatros aircraft entered the warbird market, where their relatively simple systems, forgiving flight characteristics, and jet performance made them accessible to private owners and contract adversary operators. The type has found particular success in the United States and other Western nations as an advanced aerobatic platform, formation trainer, and aggressor aircraft for military contract work. Companies like Draken International and ATAC operate fleets of L-39s to provide realistic adversary training for fighter squadrons, while individual owners fly them at airshows and in competitive aerobatics.

The aircraft's tandem seating, side-by-side ejection seats, and tip tanks give it an instantly recognizable profile. Its straight wing and conventional layout prioritize stability and ease of handling over raw performance, with approach speeds around 115 knots making it manageable for pilots transitioning from piston aircraft. The L-39 can sustain +8/-4 G loads and remains fully aerobatic throughout its envelope, though its subsonic design means it lacks the thrust-to-weight ratio of modern fighter trainers. Variants include the baseline L-39C trainer, the L-39ZA light attack version with underwing hardpoints, and the upgraded L-39NG with a Williams FJ44 engine that entered production in 2023.

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

FLIGHTS
118
all time
FLOWN HOURS
84
tracked time
📍
AIRPORTS VISITED
21
unique
📡
CALLSIGNS
2
39 routes
📅
SERVICE PERIOD
06/03/2025 → 06/08/2026
first → last
INCIDENT RATE
40.7%
48 flagged

Top routes

By flight count

10
13
2
2
2
1
1
1
1
1
1

Flight numbers

Most-flown by this airframe

2

Aircraft specifications

Aero Vodochody L-39 Albatros

Engines
Single Jet
Vref (approach)
115 kt
Vmo
405 kt
MTOW
10,362 lb
Wake category
L

Recent flights

Newest 50 operations of N339SG

50
06/08/2026
22m
No alerts
06/08/2026
38m
No alerts
06/07/2026
51m
No alerts
06/04/2026
1h 5m
No alerts
06/04/2026
51m
No alerts
06/04/2026
3h 52m
No alerts
06/03/2026
25m
No alerts
06/02/2026
25m
No alerts
06/01/2026
36m
No alerts
05/30/2026
1h 19m
△ Low approach-stability score
04/22/2026
37m
No alerts
04/22/2026
33m
No alerts
04/20/2026
39m
△ Low approach-stability score
12/19/2025
38m
△ Low approach-stability score
12/19/2025
11m
No alerts
12/18/2025
30m
No alerts
12/18/2025
48m
No alerts
12/18/2025
25m
△ Low approach-stability score
12/17/2025
32m
No alerts
12/17/2025
1h 3m
△ Low approach-stability score
12/17/2025
31m
△ Low approach-stability score
12/17/2025
3m
No alerts
12/17/2025
58m
△ Low approach-stability score
12/15/2025
31m
No alerts
12/12/2025
33m
No alerts
11/25/2025
18m
No alerts
11/03/2025
28m
△ Low approach-stability score
10/29/2025
9m
No alerts
10/28/2025
43m
No alerts
10/27/2025
56m
△ Low approach-stability score
09/29/2025
23m
No alerts
09/29/2025
36m
△ Low approach-stability score
09/28/2025
13m
No alerts
09/28/2025
50m
△ Low approach-stability score
09/26/2025
30m
△ Low approach-stability score
09/25/2025
40m
No alerts
09/25/2025
1h 11m
△ Low approach-stability score
09/19/2025
56m
△ Low approach-stability score
09/19/2025
1h 1m
△ Low approach-stability score
09/14/2025
47m
△ Low approach-stability score
09/14/2025
58m
No alerts
09/14/2025
30m
△ Low approach-stability score
09/10/2025
1h 13m
No alerts
09/10/2025
43m
No alerts
09/03/2025
20m
△ Low approach-stability score
07/27/2025
20m
No alerts
07/27/2025
1h 1m
No alerts
07/27/2025
16m
No alerts
07/23/2025
7m
No alerts
07/23/2025
1h 25m
△ Low approach-stability score
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