JDI HOLDINGS LLC· ICAO24 a65f86· last seen 2d ago

N51EM is a Cessna Citation CJ4, a twin-engine jet operated by JDI HOLDINGS LLC. SkyMeter has tracked 622 flights totalling 928 hours of airtime via ADS-B. The most frequent segment is KABE to KIAD. Service window in our records spans 513 days. Of those flights, 38 (6.1%) carry at least one detected incident: a go-around, unstable approach, stall warning, or runway excursion. The Cessna Citation CJ4 has a 51 ft wingspan, a maximum takeoff weight of 17,110 lb.

About the Cessna Citation CJ4

The Cessna Citation CJ4 is the largest and fastest member of the Citation Jet family, a light business jet that bridges the gap between entry-level Citations and midsize cabin-class aircraft. First delivered in 2010, the CJ4 stretches the fuselage of its CJ3 predecessor by nearly two feet, seats up to nine passengers, and is powered by twin Williams FJ44-4A turbofans that push it to a maximum cruise speed of 451 knots true airspeed at FL450. With a range of 2,165 nautical miles and a service ceiling of 45,000 feet, the CJ4 competes directly with the Embraer Phenom 300 and Pilatus PC-24 in the super-light jet segment.

Its Rockwell Collins Pro Line 21 avionics suite and single-pilot certification make it popular with owner-operators and fractional ownership programs alike. The CJ4 remains in production at Cessna's Wichita facility as part of Textron Aviation's lineup, with over 400 delivered worldwide. Its combination of speed, range, and operating economics has made it a workhorse for corporate flight departments, air ambulance operators, and charter services.

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

✈
FLIGHTS
622
all time
⏱
FLOWN HOURS
928
tracked time
📍
AIRPORTS VISITED
71
unique
📡
CALLSIGNS
1
151 routes
📅
SERVICE PERIOD
5/27/2025 → 10/23/2026
first → last
⚠
INCIDENT RATE
6.1%
38 flagged

Top routes

By flight count

10
33
25
22
21
5
4
4
4
4
4

Flight numbers

Most-flown by this airframe

1

Aircraft specifications

Cessna Citation CJ4

Engines
Twin Jet
Vref (approach)
111 kt
Vmo
305 kt
MTOW
17,110 lb
Wingspan
51 ft
Length
53 ft
Wake category
Medium

Recent flights

Newest 50 operations of N51EM

50
10/5/2026
1h 9m
△ Low approach-stability score
9/28/2026
1h 33m
△ Low approach-stability score
9/11/2026
1h 46m
△ Low approach-stability score
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