GREEN HILLS 51 LLC· ICAO24 a65f93· last seen 15d ago

N51F is a Cessna Citation CJ4, a twin-engine jet operated by GREEN HILLS 51 LLC. SkyMeter has tracked 210 flights totalling 186 hours of airtime via ADS-B. The most frequent segment is KJWN to KM33. Service window in our records spans 391 days. Of those flights, 40 (19.0%) 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
210
all time
FLOWN HOURS
186
tracked time
📍
AIRPORTS VISITED
35
unique
📡
CALLSIGNS
1
64 routes
📅
SERVICE PERIOD
05/28/2025 → 06/24/2026
first → last
INCIDENT RATE
19.0%
40 flagged

Top routes

By flight count

10
14
14
5
5
2
2
2
2
2
1

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 N51F

50
06/04/2026
11m
△ Unstable approach
04/30/2026
12m
△ Unstable approach
04/30/2026
12m
△ Unstable approach
04/13/2026
10m
△ Unstable approach
03/26/2026
11m
△ Unstable approach
02/24/2026
10m
△ Unstable approach
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