NORDEEN CHRISTOPHER L· ICAO24 a63f3b· last seen Apr 2026

N501SD is a Maule M-5, a single-engine piston aircraft operated by NORDEEN CHRISTOPHER L. SkyMeter has tracked 80 flights totalling 37 hours of airtime via ADS-B across 2 callsigns. The most frequent segment is O62 to KSNS. Service window in our records spans 324 days. Of those flights, 2 (2.5%) carry at least one detected incident: a go-around, unstable approach, stall warning, or runway excursion. The Maule M-5 has a 31 ft wingspan, a maximum takeoff weight of 2,300 lb.

About the Maule M-5

The Maule M-5 is a rugged four-seat tailwheel aircraft built by Maule Air in Georgia from the early 1970s through the mid-1980s, designed for short-field operations and backcountry flying. Variants include the M-5-180C, M-5-210C (Lunar Rocket), M-5-220C (Lunar Rocket), and M-5-235C (Strata Rocket), each named for its Lycoming engine horsepower. The M-5 features a steel-tube fuselage with fabric covering, a high wing with full-span flaps, and oversized tires that allow operations from unimproved strips, sandbars, and mountain airstrips where most tricycle-gear aircraft cannot venture.

Its short takeoff and landing performance (typically under 500 feet over a 50-foot obstacle) made it popular with bush pilots, hunters, and remote-property owners across Alaska, the Mountain West, and Canada. The M-5 can carry four adults and baggage at a cruise speed around 140 mph, with a range of approximately 500 nautical miles depending on configuration. While never produced in large numbers compared to Cessna or Piper models, the M-5 earned a loyal following for its honest handling, simple systems, and ability to get in and out of places other singles cannot.

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

FLIGHTS
80
all time
FLOWN HOURS
37
tracked time
📍
AIRPORTS VISITED
25
unique
📡
CALLSIGNS
2
28 routes
📅
SERVICE PERIOD
06/07/2025 → 04/28/2026
first → last
INCIDENT RATE
2.5%
2 flagged

Top routes

By flight count

10
O62 KSNS
4
1
1
1
1
1
1
SRU KSQL
1
L52 KSNS
1
O23 KSNS
1

Flight numbers

Most-flown by this airframe

2

Aircraft specifications

Maule M-5

Engines
Single Piston
Vref (approach)
43 kt
MTOW
2,300 lb
Wingspan
31 ft
Length
24 ft
Wake category
Light

Recent flights

Newest 42 operations of N501SD

42
04/28/2026
38m
No alerts
04/19/2026
20m
No alerts
04/19/2026
28m
No alerts
04/17/2026
10m
No alerts
04/17/2026
14m
No alerts
04/17/2026
5m
No alerts
04/16/2026
13m
No alerts
04/15/2026
21m
No alerts
04/14/2026
22m
No alerts
01/18/2026
9m
No alerts
01/17/2026
8m
No alerts
01/15/2026
34m
No alerts
01/14/2026
20m
No alerts
01/14/2026
54m
No alerts
01/12/2026
9m
No alerts
11/09/2025
6m
No alerts
10/31/2025
57m
No alerts
10/31/2025
1h 57m
No alerts
10/27/2025
1h 27m
No alerts
10/26/2025
1h 14m
No alerts
10/22/2025
1h 6m
No alerts
10/21/2025
41m
No alerts
10/21/2025
8m
No alerts
10/12/2025
3m
No alerts
10/12/2025
11m
No alerts
09/27/2025
3m
No alerts
09/19/2025
9m
No alerts
09/19/2025
17m
No alerts
08/29/2025
8m
No alerts
07/29/2025
10m
No alerts
07/14/2025
1h 20m
No alerts
07/07/2025
1h 3m
No alerts
06/27/2025
53m
No alerts
06/27/2025
21m
△ Low approach-stability score
06/27/2025
15m
No alerts
06/07/2025
16m
No alerts
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