RETTING HENRY P· ICAO24 a7d83e· last seen Apr 2026

N604XX is an Eurocopter (Airbus Helicopters) AS350B3 operated by RETTING HENRY P. SkyMeter has tracked 64 flights totalling 105 hours of airtime via ADS-B. The most frequent segment is FA44 to KLNA. Service window in our records spans 286 days. Of those flights, 2 (3.1%) carry at least one detected incident: a go-around, unstable approach, stall warning, or runway excursion. The Eurocopter (Airbus Helicopters) AS350B3 has a maximum takeoff weight of 5,511 lb, light wake category.

About the Eurocopter (Airbus Helicopters) AS350B3

The Eurocopter AS350 B3 Ecureuil (marketed as the AStar in North America) holds the distinction of being the highest-altitude landing helicopter in history. In 2005, test pilot Didier Delsalle touched down on the summit of Mount Everest at 29,029 feet, twice, demonstrating the type's exceptional high-altitude performance powered by its Arriel 2B1 turboshaft engine. This single-engine light utility helicopter has become the workhorse of mountain operations worldwide, from Himalayan rescue missions to heli-skiing in the Rockies, thanks to its combination of power, reliability, and relatively modest operating costs.

Introduced in the early 2000s as an evolution of the proven AS350 family, the B3 variant brought significant improvements in hot-and-high performance over its predecessors. The type seats up to six passengers plus pilot and is equally at home performing aerial work (powerline inspection, firefighting with Bambi buckets, law enforcement patrol) as it is shuttling executives or tourists. Its maximum cruise speed approaches 140 knots, with a service ceiling around 15,000 feet under standard conditions, though the Everest feat proved it capable of far more in skilled hands. The B3's skid landing gear and external cargo hook make it adaptable to environments where wheeled aircraft cannot venture.

The AS350 B3 competes directly with the Bell 407 in the single-engine turbine market but has carved out a particular reputation in high-altitude and mountainous terrain where its power-to-weight ratio shines. Operators range from small charter companies and private owners to government agencies and utility contractors. The type's relatively simple systems and widespread parts availability have made it a favorite among owner-pilots and small operators who value maintainability alongside capability. SkyMeter has tracked flights across airframes and operators, with the largest observed operator.

FLIGHTS
64
all time
FLOWN HOURS
105
tracked time
📍
AIRPORTS VISITED
24
unique
📡
CALLSIGNS
1
25 routes
📅
SERVICE PERIOD
07/13/2025 → 04/25/2026
first → last
INCIDENT RATE
3.1%
2 flagged

Top routes

By flight count

10
4
3
2
1
1
1
1
1
1
1

Flight numbers

Most-flown by this airframe

1

Aircraft specifications

Eurocopter (Airbus Helicopters) AS350B3

Engines
Single Rotorcraft
MTOW
5,511 lb
Wake category
L

Recent flights

Newest 32 operations of N604XX

32
04/25/2026
58m
No alerts
04/23/2026
1h 56m
No alerts
04/17/2026
3h 7m
No alerts
04/16/2026
3h 6m
No alerts
02/21/2026
4h 51m
No alerts
02/19/2026
4h 16m
△ Low approach-stability score
02/13/2026
2h 35m
No alerts
02/09/2026
2h 26m
No alerts
01/09/2026
3h 3m
No alerts
01/08/2026
1h 49m
No alerts
12/16/2025
2h 56m
No alerts
11/22/2025
3h 20m
No alerts
11/21/2025
1h 49m
No alerts
11/19/2025
40m
No alerts
11/19/2025
8m
No alerts
11/19/2025
11m
No alerts
11/14/2025
2h 57m
No alerts
11/07/2025
1h 59m
No alerts
11/04/2025
1h 55m
No alerts
09/15/2025
25m
No alerts
09/14/2025
22m
No alerts
08/28/2025
45m
No alerts
08/12/2025
20m
No alerts
08/07/2025
22m
No alerts
08/06/2025
44m
No alerts
08/05/2025
29m
No alerts
07/28/2025
38m
No alerts
07/21/2025
37m
No alerts
07/21/2025
50m
No alerts
07/20/2025
29m
No alerts
07/20/2025
20m
No alerts
07/13/2025
2h 0m
No alerts
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