DENAINA AIR TAXI LLC· ICAO24 a12d65· last seen 2d ago

N175SW is a Fairchild Swearingen Swearingen SA-227AT Merlin 4, a twin-engine turboprop operated by DENAINA AIR TAXI LLC. SkyMeter has tracked 934 flights totalling 2,269 hours of airtime via ADS-B across 20 callsigns. The most frequent segment is PANC to PANC. Service window in our records spans 417 days. Of those flights, 46 (4.9%) carry at least one detected incident: a go-around, unstable approach, stall warning, or runway excursion. The Fairchild Swearingen Swearingen SA-227AT Merlin 4 has a 57 ft wingspan, a maximum takeoff weight of 15,999 lb.

About the Fairchild Swearingen Swearingen SA-227AT Merlin 4

The Fairchild Swearingen Metro is a 19-seat pressurized twin-turboprop commuter aircraft that became the workhorse of regional aviation across North America and beyond from the 1970s through the 2000s. Developed from the earlier Merlin business aircraft, the Metro combined a stand-up cabin, reliable Garrett TPE331 engines, and the ability to operate from short runways, making it ideal for connecting small communities to hub airports. Over 1,000 Metros were built across multiple variants, with the Metro III (SA227-AC) and Metro 23 (SA227-DC) becoming the most common models in airline service.

The Metro's long, slender fuselage and distinctive T-tail gave it excellent high-altitude performance for its class, with a service ceiling of 25,000 feet and cruising speeds around 260 knots. Its rugged landing gear and powerful engines allowed operations into gravel strips and high-elevation airports that larger regional jets couldn't serve economically. While newer turboprops like the Dash 8 and ATR eventually displaced it from major carriers, the Metro found a second life in cargo operations, air ambulance roles, and serving remote routes in Canada, Australia, and Alaska.

Today the Metro remains in active service primarily with smaller regional carriers and charter operators who value its reliability, low operating costs, and ability to handle challenging airfields. The type earned a reputation for being demanding to fly: pilots noted its narrow fuselage, limited autopilot capabilities in early models, and tendency toward Dutch roll, but also respected its performance and dispatch reliability in harsh conditions.

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

FLIGHTS
934
all time
FLOWN HOURS
2,269
tracked time
📍
AIRPORTS VISITED
17
unique
📡
CALLSIGNS
20
35 routes
📅
SERVICE PERIOD
05/28/2025 → 07/19/2026
first → last
INCIDENT RATE
4.9%
46 flagged

Top routes

By flight count

10
133
56
52
24
24
22
22
17
12
9

Aircraft specifications

Fairchild Swearingen Swearingen SA-227AT Merlin 4

Engines
Twin Turboprop
Vref (approach)
112 kt
Vmo
248 kt
MTOW
15,999 lb
Wingspan
57 ft
Length
59 ft
Wake category
Light/Medium

Recent flights

Newest 50 operations of N175SW

50
07/19/2026
1h 17m
△ Low approach-stability score
© SkyMeter · All flight data subject to ODbL attribution