MCMAHON HELICOPTER SERVICES INC· ICAO24 a52870· last seen 15h ago

N431SL is a Bell Helicopter 430 operated by MCMAHON HELICOPTER SERVICES INC. SkyMeter has tracked 234 flights totalling 714 hours of airtime via ADS-B across 2 callsigns. The most frequent segment is K17G to KDAY. Service window in our records spans 513 days. Of those flights, 2 (0.9%) carry at least one detected incident: a go-around, unstable approach, stall warning, or runway excursion. The Bell Helicopter 430 has a maximum takeoff weight of 5,300 lb, light wake category.

About the Bell Helicopter 430

The Bell 430 is a twin-engine intermediate utility helicopter that entered service in 1996, representing Bell's effort to bridge the gap between light singles and medium twins in the corporate and emergency medical services markets. Built in Fort Worth, Texas, the 430 combines the dynamic components of the proven Bell 230 with a sleek four-blade hingeless rotor system and a spacious eight-passenger cabin featuring clamshell doors for easy loading. Its twin Allison 250-C40B turboshaft engines provide exceptional hot-and-high performance and single-engine safety margins that made it popular with operators flying in mountainous terrain and urban air medical missions.

What distinguishes the 430 from competitors is its unusually wide cabin (nearly five feet across) and its advanced NOTAR (no tail rotor) option that was available on some variants, reducing noise and improving safety around ground personnel. The type achieved FAA certification for single-pilot IFR operations and could cruise at 140 knots with a range exceeding 360 nautical miles, making it well-suited for corporate shuttle work and offshore oil platform support. Though production ended in 2004 after roughly 170 units were built, the 430 remains in active service worldwide, valued for its reliability and relatively low operating costs compared to larger twins.

The Bell 430's operational envelope includes a never-exceed speed of 140 knots and a service ceiling of 16,000 feet, with the ability to hover out of ground effect at 10,400 feet on a standard day. Its maximum takeoff weight of 5,300 pounds allows for meaningful payload in demanding conditions, and the twin-engine configuration provides continued flight capability after an engine failure, a critical safety feature for missions over water or congested areas. SkyMeter has tracked flights across airframes and operators, with the largest observed operator.

✈
FLIGHTS
234
all time
⏱
FLOWN HOURS
714
tracked time
📍
AIRPORTS VISITED
14
unique
📡
CALLSIGNS
2
10 routes
📅
SERVICE PERIOD
5/28/2025 → 10/24/2026
first → last
⚠
INCIDENT RATE
0.9%
2 flagged

Top routes

By flight count

6
1
1
1
1
1D2 → 88D
1
1

Flight numbers

Most-flown by this airframe

2

Aircraft specifications

Bell Helicopter 430

Engines
Twin Rotorcraft
MTOW
5,300 lb
Wake category
L

Recent flights

Newest 50 operations of N431SL

50
10/24/2026
40m
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10/24/2026
20m
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10/24/2026
1h 57m
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10/24/2026
5m
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10/24/2026
4m
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10/24/2026
46m
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10/24/2026
42m
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10/23/2026
8m
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10/23/2026
48m
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10/23/2026
22m
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10/23/2026
5m
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10/23/2026
5m
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10/23/2026
24m
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10/23/2026
11h 19m
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10/23/2026
38m
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10/20/2026
28m
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10/20/2026
5m
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10/20/2026
40m
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10/20/2026
21m
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10/20/2026
13m
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10/20/2026
3h 48m
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10/20/2026
53m
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10/9/2026
51m
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10/9/2026
30m
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10/9/2026
3m
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10/9/2026
19m
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10/9/2026
1m
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10/9/2026
7m
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10/9/2026
14m
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10/9/2026
2m
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10/9/2026
6h 49m
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10/9/2026
1h 29m
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10/9/2026
28m
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10/9/2026
6m
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10/9/2026
39m
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10/9/2026
40m
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10/9/2026
7m
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10/8/2026
15m
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18m
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10/8/2026
23m
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10/8/2026
8h 32m
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10/8/2026
4m
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10/7/2026
30m
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10/7/2026
14m
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10/7/2026
31m
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10/7/2026
1m
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10/7/2026
34m
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10/7/2026
1m
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10/7/2026
13m
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10/7/2026
14m
No alerts
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