N999NB is operated by STOCKHAM CONSTRUCTION INC between Mc Clellan-Palomar Airport (KCRQ) and Charles M. Schulz Sonoma County Airport (KSTS). The flight is most often flown by a GULFSTREAM AEROSPACE Gulfstream IV/G400. Typical block time is 1h 47m. SkyMeter has observed 14 legs of this flight number via ADS-B.

✈
FLIGHTS
14
last 90 days
⏱
AVG DURATION
1h 47m
tracked time
📅
SERVICE PERIOD
05/29/2025 → 06/02/2026
first → last seen
🗺
ROUTES / TYPES
11 / 1
city pairs · airframes
⚠
INCIDENT RATE
28.6%
4 flagged

Routes flown

By count · last 90 days

9
KCRQ → KSTS
2
avg 1h 14m · Mc Clellan-Palomar → Charles M. Schulz Sonoma County
KSTS → KCRQ
2
avg 1h 17m · Charles M. Schulz Sonoma County → Mc Clellan-Palomar
KSDL → KSTS
1
avg 2h 35m · Scottsdale → Charles M. Schulz Sonoma County
KSAT → KSTS
1
avg 3h 32m · San Antonio → Charles M. Schulz Sonoma County
KSTS → KSAT
1
avg 3h 1m · Charles M. Schulz Sonoma County → San Antonio
KSTS → KSDL
1
avg 1h 42m · Charles M. Schulz Sonoma County → Scottsdale
KSTS → KBOI
1
avg 1h 4m · Charles M. Schulz Sonoma County → Boise Air Terminal/Gowen Field
KSTS → KHND
1
avg 1h 29m · Charles M. Schulz Sonoma County → Henderson Executive
KHND → KSTS
1
avg 1h 55m · Henderson Executive → Charles M. Schulz Sonoma County

Aircraft types

Equipment used on this number

1
GLF4 GULFSTREAM AEROSPACE Gulfstream IV/G400
22

Safety profile

Flagged flights · last 90 days

Go-arounds
0
Unstable approach
4
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 N999NB

30
N999NBGULFSTREAM AEROSPACE Gulfstream IV/G400
→
06/02/2026
1h 4m
No alerts
Replay Analysis
N999NBGULFSTREAM AEROSPACE Gulfstream IV/G400
→
05/26/2026
1h 6m
No alerts
Replay Analysis
N999NBGULFSTREAM AEROSPACE Gulfstream IV/G400
→
05/25/2026
12m
No alerts
Replay Analysis
N999NBGULFSTREAM AEROSPACE Gulfstream IV/G400
→
05/25/2026
1h 19m
No alerts
Replay Analysis
N999NBGULFSTREAM AEROSPACE Gulfstream IV/G400
→
05/25/2026
1h 16m
No alerts
Replay Analysis
N999NBGULFSTREAM AEROSPACE Gulfstream IV/G400
→
05/25/2026
3h 32m
△ Unstable approach
Replay Analysis
N999NBGULFSTREAM AEROSPACE Gulfstream IV/G400
→
05/23/2026
3h 1m
No alerts
Replay Analysis
N999NBGULFSTREAM AEROSPACE Gulfstream IV/G400
→
05/23/2026
46m
△ Unstable approach
Replay Analysis
N999NBGULFSTREAM AEROSPACE Gulfstream IV/G400
→
05/22/2026
22m
No alerts
Replay Analysis
N999NBGULFSTREAM AEROSPACE Gulfstream IV/G400
→
05/22/2026
1h 9m
△ Unstable approach
Replay Analysis
N999NBGULFSTREAM AEROSPACE Gulfstream IV/G400
→
05/22/2026
1h 16m
No alerts
Replay Analysis
N999NBGULFSTREAM AEROSPACE Gulfstream IV/G400
→
05/16/2026
1h 54m
No alerts
Replay Analysis
N999NBGULFSTREAM AEROSPACE Gulfstream IV/G400
→
05/13/2026
1h 29m
No alerts
Replay Analysis
N999NBGULFSTREAM AEROSPACE Gulfstream IV/G400
→
05/04/2026
1h 28m
△ Unstable approach
Replay Analysis
N999NBGULFSTREAM AEROSPACE Gulfstream IV/G400
→
05/03/2026
2h 34m
△ Unstable approach
Replay Analysis
N999NBGULFSTREAM AEROSPACE Gulfstream IV/G400
→
05/03/2026
1h 5m
No alerts
Replay Analysis
N999NBGULFSTREAM AEROSPACE Gulfstream IV/G400
→
05/01/2026
37m
No alerts
Replay Analysis
N999NBGULFSTREAM AEROSPACE Gulfstream IV/G400
→
04/30/2026
1h 4m
No alerts
Replay Analysis
N999NBGULFSTREAM AEROSPACE Gulfstream IV/G400
→
04/30/2026
1h 42m
No alerts
Replay Analysis
N999NBGULFSTREAM AEROSPACE Gulfstream IV/G400
→
04/14/2026
2h 51m
△ Unstable approach
Replay Analysis
N999NBGULFSTREAM AEROSPACE Gulfstream IV/G400
→
04/13/2026
33m
No alerts
Replay Analysis
N999NBGULFSTREAM AEROSPACE Gulfstream IV/G400
→
04/13/2026
1h 19m
No alerts
Replay Analysis
N999NBGULFSTREAM AEROSPACE Gulfstream IV/G400
→
04/09/2026
1h 2m
No alerts
Replay Analysis
N999NBGULFSTREAM AEROSPACE Gulfstream IV/G400
→
04/09/2026
3h 3m
No alerts
Replay Analysis
N999NBGULFSTREAM AEROSPACE Gulfstream IV/G400
→
03/22/2026
1h 47m
No alerts
Replay Analysis
N999NBGULFSTREAM AEROSPACE Gulfstream IV/G400
→
03/21/2026
1h 21m
No alerts
Replay Analysis
N999NBGULFSTREAM AEROSPACE Gulfstream IV/G400
→
03/16/2026
1h 55m
No alerts
Replay Analysis
N999NBGULFSTREAM AEROSPACE Gulfstream IV/G400
→
03/16/2026
44m
No alerts
Replay Analysis
N999NBGULFSTREAM AEROSPACE Gulfstream IV/G400
→
03/16/2026
1h 40m
△ Unstable approach
Replay Analysis
N999NBGULFSTREAM AEROSPACE Gulfstream IV/G400
→
03/13/2026
3h 5m
△ Unstable approach
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window