UNADVENTUROUS LLC· ICAO24 add12a· last seen 13h ago

N99JZ is a Beechcraft 58T, a twin-engine piston aircraft operated by UNADVENTUROUS LLC. SkyMeter has tracked 172 flights totalling 250 hours of airtime via ADS-B. The most frequent segment is KTDW to KTDW. Service window in our records spans 471 days. Of those flights, 12 (7.0%) carry at least one detected incident: a go-around, unstable approach, stall warning, or runway excursion. The Beechcraft 58T has a maximum takeoff weight of 5,500 lb, light wake category.

About the Beechcraft 58T

The Beechcraft Baron 58T is the turbocharged variant of the venerable Baron 58, one of general aviation's most successful light twins. Introduced in the mid-1970s, the 58T added twin Continental TSIO-520 engines with turbochargers, enabling the aircraft to maintain sea-level power up to higher altitudes and cruise efficiently in the flight levels where most light twins struggle. This capability made it particularly popular with owner-pilots flying long cross-country missions over mountainous terrain and with small charter operators needing reliable IFR performance.

The Baron 58T's pressurized cousin, the Baron 58P, offered even greater high-altitude capability, but the unpressurized 58T struck an appealing balance: it delivered much of the altitude performance without the complexity, weight, and maintenance burden of a pressurization system. Typical cruise speeds reach 200-220 knots true airspeed at altitude, with a service ceiling around 25,000 feet, substantially higher than naturally aspirated twins. The type seats six in a comfortable cabin and remains a favorite among business owners, ranchers covering large territories, and pilots who value the redundancy of twin engines combined with respectable speed and range.

Beechcraft built the Baron series for over four decades, and the 58T variant remains a common sight at general aviation airports across North America. Its combination of speed, payload, and high-altitude capability continues to serve operators who need more than a single-engine aircraft can offer but don't require the operating costs of a turboprop or light jet. SkyMeter has tracked flights across airframes and operators, with the largest observed operator.

✈
FLIGHTS
172
all time
⏱
FLOWN HOURS
250
tracked time
📍
AIRPORTS VISITED
20
unique
📡
CALLSIGNS
1
37 routes
📅
SERVICE PERIOD
6/27/2025 → 10/12/2026
first → last
⚠
INCIDENT RATE
7.0%
12 flagged

Top routes

By flight count

10
5
4
3
3
3
2
2
2
1
1

Flight numbers

Most-flown by this airframe

1

Aircraft specifications

Beechcraft 58T

Engines
Twin Piston
Vref (approach)
90 kt
MTOW
5,500 lb
Wake category
L

Recent flights

Newest 50 operations of N99JZ

50
10/12/2026
2h 30m
No alerts
10/9/2026
2h 37m
No alerts
9/28/2026
2h 53m
No alerts
9/26/2026
1h 31m
No alerts
9/25/2026
1h 44m
No alerts
9/21/2026
1h 34m
No alerts
9/20/2026
1h 30m
No alerts
9/18/2026
1h 27m
△ Low approach-stability score
9/14/2026
1h 24m
No alerts
9/10/2026
51m
No alerts
9/3/2026
1h 33m
No alerts
8/23/2026
1h 40m
No alerts
8/22/2026
1h 39m
No alerts
8/19/2026
9m
No alerts
7/9/2026
1h 24m
△ Low approach-stability score
7/8/2026
1h 22m
No alerts
7/5/2026
1h 17m
No alerts
7/1/2026
1h 29m
No alerts
6/27/2026
1h 39m
No alerts
6/21/2026
7h 6m
No alerts
6/20/2026
57m
No alerts
6/18/2026
46m
No alerts
6/17/2026
11m
No alerts
5/3/2026
1h 4m
No alerts
5/2/2026
59m
△ Low approach-stability score
3/22/2026
1h 23m
△ Low approach-stability score
3/22/2026
14m
No alerts
3/22/2026
1h 38m
△ Low approach-stability score
3/21/2026
2h 33m
△ Low approach-stability score
3/21/2026
2h 52m
No alerts
3/15/2026
1h 42m
No alerts
3/15/2026
2h 5m
No alerts
3/15/2026
1h 32m
No alerts
3/15/2026
4h 48m
No alerts
3/8/2026
53m
No alerts
3/7/2026
1h 6m
No alerts
3/7/2026
1h 6m
No alerts
3/2/2026
1h 3m
No alerts
3/2/2026
1h 3m
No alerts
1/30/2026
1h 10m
No alerts
1/30/2026
1h 10m
No alerts
1/22/2026
9m
No alerts
1/22/2026
9m
No alerts
1/11/2026
58m
No alerts
1/11/2026
58m
No alerts
1/10/2026
1h 22m
No alerts
© SkyMeter · All flight data subject to ODbL attribution