CUSTOM BUILT AC LLC· ICAO24 acb513· last seen Apr 2026

N918HA is an Alligatair, a single-engine piston aircraft operated by CUSTOM BUILT AC LLC. SkyMeter has tracked 108 flights totalling 34 hours of airtime via ADS-B across 2 callsigns. The most frequent segment is KX05 to KX05. Service window in our records spans 311 days. Of those flights, 6 (5.6%) carry at least one detected incident: a go-around, unstable approach, stall warning, or runway excursion. The Alligatair has a maximum takeoff weight of 1,320 lb, light wake category.

About the Alligatair

The Alligatair is a French-designed light sport amphibious aircraft that brings seaplane capability to the ultralight category. Built by Alligatair in France, this single-engine pusher-configuration aircraft entered production in the early 2000s as one of the few factory-built amphibians eligible under light sport aircraft rules in multiple jurisdictions. Its distinctive high-wing layout, retractable landing gear, and composite construction allow operations from both conventional runways and water, making it popular among recreational pilots seeking versatile backcountry and coastal access.

The type's amphibious capability comes from a boat-hull fuselage and electrically retractable tricycle gear that tucks into sponsons when operating as a seaplane. Maximum takeoff weight of 1,320 pounds keeps it within LSA limits in the United States, while its Rotax powerplant, typically a 100-horsepower 912 series engine, provides adequate performance for the mission profile. Cruise speeds around 90 knots and a never-exceed speed of 120 knots reflect its light sport classification, though the aircraft's real appeal lies in access rather than speed.

The Alligatair remains a niche type in North American skies, with most examples operated by individual owners rather than flight schools or commercial operators. Its relatively high acquisition cost compared to land-only light sport aircraft, combined with the specialized skills required for amphibious operations, has kept the fleet small but dedicated. SkyMeter has tracked flights across airframes and operators, with the largest observed operator.

FLIGHTS
108
all time
FLOWN HOURS
34
tracked time
📍
AIRPORTS VISITED
19
unique
📡
CALLSIGNS
2
20 routes
📅
SERVICE PERIOD
05/28/2025 → 04/04/2026
first → last
INCIDENT RATE
5.6%
6 flagged

Top routes

By flight count

10
12
5
3
2
2
1
1
1
1

Flight numbers

Most-flown by this airframe

2

Aircraft specifications

Alligatair

Engines
Single Piston
Vref (approach)
50 kt
MTOW
1,320 lb
Wake category
L

Recent flights

Newest 50 operations of N918HA

50
04/04/2026
11m
No alerts
04/04/2026
48m
No alerts
03/27/2026
8m
No alerts
03/27/2026
25m
No alerts
03/23/2026
6m
No alerts
03/23/2026
4m
No alerts
03/23/2026
9m
No alerts
02/25/2026
28m
No alerts
01/30/2026
13m
No alerts
01/22/2026
4m
No alerts
01/22/2026
10m
No alerts
12/25/2025
30m
No alerts
12/20/2025
31m
No alerts
12/20/2025
16m
△ Low approach-stability score
12/20/2025
12m
No alerts
12/20/2025
16m
No alerts
12/19/2025
32m
No alerts
08/29/2025
28m
No alerts
08/29/2025
13m
No alerts
08/27/2025
44m
No alerts
08/19/2025
25m
No alerts
08/17/2025
17m
△ Low approach-stability score
08/17/2025
3m
No alerts
08/15/2025
21m
No alerts
08/15/2025
10m
No alerts
08/14/2025
25m
No alerts
08/14/2025
5m
No alerts
08/08/2025
9m
No alerts
08/08/2025
8m
No alerts
08/07/2025
47m
No alerts
08/06/2025
31m
No alerts
08/06/2025
20m
No alerts
08/05/2025
5m
No alerts
08/05/2025
22m
No alerts
08/04/2025
9m
No alerts
08/04/2025
9m
No alerts
08/04/2025
22m
No alerts
08/03/2025
12m
No alerts
08/03/2025
3m
No alerts
07/26/2025
51m
No alerts
07/25/2025
42m
No alerts
07/24/2025
3m
No alerts
07/24/2025
6m
No alerts
07/24/2025
6m
No alerts
07/23/2025
38m
No alerts
07/19/2025
5m
△ Low approach-stability score
07/19/2025
18m
No alerts
07/18/2025
34m
No alerts
06/26/2025
2m
No alerts
06/26/2025
3m
No alerts
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