NDU51 is operated by PIPER AIRCRAFT INC between Crookston Municipal Kirkwood Field (KCKN) and Grand Forks International Airport (KGFK). The flight is most often flown by a PIPER Piper Cherokee. Typical block time is 0h 29m. SkyMeter has observed 396 legs of this flight number via ADS-B.

✈
FLIGHTS
396
last 90 days
⏱
AVG DURATION
29m
tracked time
📅
SERVICE PERIOD
5/27/2025 → 8/19/2026
first → last seen
🗺
ROUTES / TYPES
91 / 1
city pairs · airframes
⚠
INCIDENT RATE
7.3%
29 flagged

Routes flown

By count · last 90 days

10
KCKN → KGFK
24
avg 16m · Crookston Municipal Kirkwood Field → Grand Forks
8ND4 → KGFK
13
avg 8m · Heyde → Grand Forks
KGFK → KCKN
13
avg 27m · Grand Forks → Crookston Municipal Kirkwood Field
2MN0 → KGFK
13
avg 10m · Pribbs Field → Grand Forks
4ND1 → KGFK
10
avg 6m · Knutson → Grand Forks
MN81 → KGFK
8
avg 6m · J J and T → Grand Forks
KGFK → D06
6
avg 15m · Grand Forks → Minto
KGFK → K4V4
6
avg 26m · Grand Forks → Northwood Municipal Vince Field
KRDR → KGFK
6
avg 5m · Grand Forks Air Force Base → Grand Forks
KGFK → KD56
4
avg 39m · Grand Forks → Mayville

Aircraft types

Equipment used on this number

1
P28A PIPER Piper Cherokee
396

Safety profile

Flagged flights · last 90 days

Go-arounds
0
Unstable approach
29
Rejected TO
0
Stall warnings
0
Overspeeds
0
Runway excursion
0
Counts represent flights with at least one occurrence of each flag, not the total event count. See /incidents for individual events.

Recent flights

Newest 30 operations of NDU51

30
N951NDPIPER Piper Cherokee
→
8/19/2026
5m
No alerts
Replay Analysis
N951NDPIPER Piper Cherokee
→
8/19/2026
52m
No alerts
Replay Analysis
N951NDPIPER Piper Cherokee
→
8/19/2026
38m
No alerts
Replay Analysis
N951NDPIPER Piper Cherokee
→
8/19/2026
17m
No alerts
Replay Analysis
N951NDPIPER Piper Cherokee
→
8/19/2026
12m
No alerts
Replay Analysis
N951NDPIPER Piper Cherokee
→
8/19/2026
15m
No alerts
Replay Analysis
N951NDPIPER Piper Cherokee
→
8/19/2026
50m
No alerts
Replay Analysis
N951NDPIPER Piper Cherokee
→
8/19/2026
19m
No alerts
Replay Analysis
N951NDPIPER Piper Cherokee
→
8/18/2026
21m
No alerts
Replay Analysis
N951NDPIPER Piper Cherokee
→
8/18/2026
39m
No alerts
Replay Analysis
N951NDPIPER Piper Cherokee
→
8/18/2026
1h 2m
△ Low approach-stability score
Replay Analysis
N951NDPIPER Piper Cherokee
→
8/18/2026
46m
No alerts
Replay Analysis
N951NDPIPER Piper Cherokee
→
8/18/2026
29m
No alerts
Replay Analysis
N951NDPIPER Piper Cherokee
→
8/18/2026
7m
No alerts
Replay Analysis
N951NDPIPER Piper Cherokee
→
8/18/2026
45m
No alerts
Replay Analysis
N951NDPIPER Piper Cherokee
→
8/17/2026
12m
No alerts
Replay Analysis
N951NDPIPER Piper Cherokee
→
8/17/2026
15m
No alerts
Replay Analysis
N951NDPIPER Piper Cherokee
→
8/17/2026
15m
△ Low approach-stability score
Replay Analysis
N951NDPIPER Piper Cherokee
→
8/17/2026
23m
No alerts
Replay Analysis
N951NDPIPER Piper Cherokee
→
8/17/2026
11m
No alerts
Replay Analysis
N951NDPIPER Piper Cherokee
→
8/17/2026
35m
No alerts
Replay Analysis
N951NDPIPER Piper Cherokee
→
8/14/2026
1h 22m
No alerts
Replay Analysis
N951NDPIPER Piper Cherokee
→
8/14/2026
10m
No alerts
Replay Analysis
N951NDPIPER Piper Cherokee
→
8/14/2026
1h 38m
No alerts
Replay Analysis
N951NDPIPER Piper Cherokee
→
8/13/2026
58m
No alerts
Replay Analysis
N951NDPIPER Piper Cherokee
→
8/13/2026
3m
No alerts
Replay Analysis
N951NDPIPER Piper Cherokee
→
8/13/2026
12m
No alerts
Replay Analysis
N951NDPIPER Piper Cherokee
→
8/13/2026
14m
No alerts
Replay Analysis
N951NDPIPER Piper Cherokee
→
8/13/2026
32m
No alerts
Replay Analysis
N951NDPIPER Piper Cherokee
→
8/13/2026
1h 27m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window