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 28m. SkyMeter has observed 384 legs of this flight number via ADS-B.

✈
FLIGHTS
384
last 90 days
⏱
AVG DURATION
28m
tracked time
📅
SERVICE PERIOD
05/27/2025 → 07/02/2026
first → last seen
🗺
ROUTES / TYPES
83 / 1
city pairs · airframes
⚠
INCIDENT RATE
10.2%
39 flagged

Routes flown

By count · last 90 days

10
KCKN → KGFK
25
avg 16m · Crookston Municipal Kirkwood Field → Grand Forks
8ND4 → KGFK
15
avg 9m · Heyde → Grand Forks
2MN0 → KGFK
15
avg 9m · Pribbs Field → Grand Forks
KGFK → KCKN
12
avg 33m · Grand Forks → Crookston Municipal Kirkwood Field
4ND1 → KGFK
11
avg 5m · Knutson → Grand Forks
KGFK → K4V4
8
avg 26m · Grand Forks → Northwood Municipal Vince Field
KGFK → KD37
7
avg 28m · Grand Forks → Warren
KRDR → KGFK
6
avg 9m · Grand Forks Air Force Base → Grand Forks
KGFK → D06
5
avg 10m · Grand Forks → Minto
KGFK → KGAF
5
avg 33m · Grand Forks → Hutson Field

Aircraft types

Equipment used on this number

1
P28A PIPER Piper Cherokee
384

Safety profile

Flagged flights · last 90 days

Go-arounds
0
Unstable approach
39
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
→
07/02/2026
4m
No alerts
Replay Analysis
N951NDPIPER Piper Cherokee
→
07/02/2026
17m
No alerts
Replay Analysis
N951NDPIPER Piper Cherokee
→
07/02/2026
12m
No alerts
Replay Analysis
N951NDPIPER Piper Cherokee
→
07/02/2026
15m
No alerts
Replay Analysis
N951NDPIPER Piper Cherokee
→
07/02/2026
12m
No alerts
Replay Analysis
N951NDPIPER Piper Cherokee
→
07/02/2026
7m
No alerts
Replay Analysis
N951NDPIPER Piper Cherokee
→
07/02/2026
3m
No alerts
Replay Analysis
N951NDPIPER Piper Cherokee
→
07/02/2026
10m
No alerts
Replay Analysis
N951NDPIPER Piper Cherokee
→
07/01/2026
1h 16m
No alerts
Replay Analysis
N951NDPIPER Piper Cherokee
→
07/01/2026
4m
No alerts
Replay Analysis
N951NDPIPER Piper Cherokee
→
07/01/2026
25m
No alerts
Replay Analysis
N951NDPIPER Piper Cherokee
→
07/01/2026
21m
No alerts
Replay Analysis
N951NDPIPER Piper Cherokee
→
07/01/2026
38m
No alerts
Replay Analysis
N951NDPIPER Piper Cherokee
→
07/01/2026
51m
△ Unstable approach
Replay Analysis
N951NDPIPER Piper Cherokee
→
06/30/2026
6m
No alerts
Replay Analysis
N951NDPIPER Piper Cherokee
→
06/30/2026
11m
No alerts
Replay Analysis
N951NDPIPER Piper Cherokee
→
06/27/2026
54m
No alerts
Replay Analysis
N951NDPIPER Piper Cherokee
→
06/27/2026
15m
△ Unstable approach
Replay Analysis
N951NDPIPER Piper Cherokee
→
06/26/2026
19m
No alerts
Replay Analysis
N951NDPIPER Piper Cherokee
→
06/26/2026
50m
No alerts
Replay Analysis
N951NDPIPER Piper Cherokee
→
06/26/2026
5m
No alerts
Replay Analysis
N951NDPIPER Piper Cherokee
→
06/26/2026
30m
No alerts
Replay Analysis
N951NDPIPER Piper Cherokee
→
06/26/2026
8m
No alerts
Replay Analysis
N951NDPIPER Piper Cherokee
→
06/26/2026
27m
No alerts
Replay Analysis
N951NDPIPER Piper Cherokee
→
06/26/2026
16m
No alerts
Replay Analysis
N951NDPIPER Piper Cherokee
→
06/26/2026
34m
No alerts
Replay Analysis
N951NDPIPER Piper Cherokee
→
06/26/2026
21m
△ Unstable approach
Replay Analysis
N951NDPIPER Piper Cherokee
→
06/26/2026
49m
No alerts
Replay Analysis
N951NDPIPER Piper Cherokee
→
06/25/2026
6m
No alerts
Replay Analysis
N951NDPIPER Piper Cherokee
→
06/25/2026
41m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window