SIGMA PHARMACEUTICALS LLC· ICAO24 ad5663· last seen 7d ago

N959DB is a Maule M-7, a single-engine piston aircraft operated by SIGMA PHARMACEUTICALS LLC. SkyMeter has tracked 44 flights totalling 38 hours of airtime via ADS-B. The most frequent segment is KBIL to KBIL. Service window in our records spans 153 days. The Maule M-7 has a maximum takeoff weight of 2,500 lb, light wake category.

About the Maule M-7

The Maule M-7 is a rugged American short takeoff and landing (STOL) taildragger built by Maule Air in Moultrie, Georgia, since the 1980s. Designed for backcountry operations, the M-7 series features a high-wing configuration, conventional landing gear, and a reputation for getting in and out of unimproved strips that would ground most certificated aircraft. With takeoff rolls as short as 300 feet and landing distances under 400 feet depending on variant and conditions, the M-7 excels at mountain flying, bush operations, and remote airstrip access where pavement is optional and obstacles are plentiful.

The type is available with a range of powerplants from 180 to 235 horsepower, all driving a fixed-pitch or constant-speed propeller, and can be equipped with floats, skis, or tundra tires for operations on water, snow, or soft terrain. Its steel-tube fuselage and fabric-covered wings make field repairs practical, a key advantage for operators far from maintenance facilities. The M-7's sturdy construction, docile handling, and four-seat cabin have made it a favorite among Alaska bush pilots, backcountry enthusiasts, and agricultural operators who need an airplane that works as hard as they do.

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

FLIGHTS
44
all time
FLOWN HOURS
38
tracked time
📍
AIRPORTS VISITED
10
unique
📡
CALLSIGNS
1
10 routes
📅
SERVICE PERIOD
02/13/2026 → 07/17/2026
first → last
INCIDENT RATE
0.0%
0 flagged

Top routes

By flight count

8
11
IA8 KMXO
1
1
1
1
1
1

Flight numbers

Most-flown by this airframe

1

Aircraft specifications

Maule M-7

Engines
Single Piston
Vref (approach)
55 kt
MTOW
2,500 lb
Wake category
L

Recent flights

Newest 22 operations of N959DB

22
07/17/2026
1h 2m
No alerts
07/12/2026
57m
No alerts
07/12/2026
8m
No alerts
07/05/2026
57m
No alerts
07/03/2026
1h 18m
No alerts
07/02/2026
29m
No alerts
07/01/2026
5m
No alerts
07/01/2026
1h 12m
No alerts
06/14/2026
1h 28m
No alerts
06/14/2026
29m
No alerts
06/14/2026
1h 14m
No alerts
06/08/2026
52m
No alerts
06/06/2026
17m
No alerts
06/06/2026
1h 9m
No alerts
06/05/2026
1h 22m
No alerts
06/03/2026
1h 35m
No alerts
06/01/2026
24m
No alerts
06/01/2026
1h 44m
No alerts
06/01/2026
7m
No alerts
05/31/2026
1h 23m
No alerts
05/31/2026
9m
No alerts
02/13/2026
13m
No alerts
© SkyMeter · All flight data subject to ODbL attribution