N4170B

OUTMAN WILLIAM D · HAF → SFO

N4170B is operated by OUTMAN WILLIAM D between Half Moon Bay Airport (KHAF) and San Francisco International Airport (KSFO). The flight is most often flown by a CESSNA Cessna 170. Typical block time is 0h 42m. SkyMeter has observed 10 legs of this flight number via ADS-B.

✈
FLIGHTS
10
last 90 days
⏱
AVG DURATION
42m
tracked time
📅
SERVICE PERIOD
05/30/2025 → 07/14/2026
first → last seen
🗺
ROUTES / TYPES
7 / 1
city pairs · airframes
⚠
INCIDENT RATE
10.0%
1 flagged

Routes flown

By count · last 90 days

5
KHAF → KSFO
2
avg 6m · Half Moon Bay → San Francisco
KHAF → 0Q3
1
avg 30m · Half Moon Bay → Sonoma Valley
KSBA → KHAF
1
avg 2h 11m · Santa Barbara → Half Moon Bay
US-2771 → KHAF
1
avg 21m · Pillar Point Air Force Station Helipad → Half Moon Bay
KHAF → KSBA
1
avg 2h 18m · Half Moon Bay → Santa Barbara

Aircraft types

Equipment used on this number

1
C170 CESSNA Cessna 170
10

Safety profile

Flagged flights · last 90 days

Go-arounds
0
Unstable approach
1
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 N4170B

30
N4170BCESSNA Cessna 170
→
07/14/2026
7m
No alerts
Replay Analysis
N4170BCESSNA Cessna 170
→
07/13/2026
13m
No alerts
Replay Analysis
N4170BCESSNA Cessna 170
→
06/29/2026
28m
No alerts
Replay Analysis
N4170BCESSNA Cessna 170
→
06/09/2026
21m
No alerts
Replay Analysis
N4170BCESSNA Cessna 170
→
06/08/2026
26m
No alerts
Replay Analysis
N4170BCESSNA Cessna 170
→
06/08/2026
30m
△ Low approach-stability score
Replay Analysis
N4170BCESSNA Cessna 170
→
05/23/2026
2h 10m
No alerts
Replay Analysis
N4170BCESSNA Cessna 170
→
05/21/2026
2h 17m
No alerts
Replay Analysis
N4170BCESSNA Cessna 170
→
05/13/2026
25m
No alerts
Replay Analysis
N4170BCESSNA Cessna 170
→
05/13/2026
5m
No alerts
Replay Analysis
N4170BCESSNA Cessna 170
→
04/23/2026
5m
No alerts
Replay Analysis
N4170BCESSNA Cessna 170
→
04/22/2026
20m
No alerts
Replay Analysis
N4170BCESSNA Cessna 170
→
04/22/2026
4m
△ Low approach-stability score
Replay Analysis
N4170BCESSNA Cessna 170
→
04/22/2026
5m
No alerts
Replay Analysis
N4170BCESSNA Cessna 170
→
04/22/2026
47m
No alerts
Replay Analysis
N4170BCESSNA Cessna 170
→
04/14/2026
28m
No alerts
Replay Analysis
N4170BCESSNA Cessna 170
→
04/14/2026
25m
△ Low approach-stability score
Replay Analysis
N4170BCESSNA Cessna 170
→
04/08/2026
24m
No alerts
Replay Analysis
N4170BCESSNA Cessna 170
→
04/08/2026
22m
No alerts
Replay Analysis
N4170BCESSNA Cessna 170
→
03/26/2026
35m
No alerts
Replay Analysis
N4170BCESSNA Cessna 170
→
02/27/2026
14m
No alerts
Replay Analysis
N4170BCESSNA Cessna 170
→
02/27/2026
12m
No alerts
Replay Analysis
N4170BCESSNA Cessna 170
→
02/21/2026
22m
No alerts
Replay Analysis
N4170BCESSNA Cessna 170
→
02/20/2026
18m
No alerts
Replay Analysis
N4170BCESSNA Cessna 170
→
01/24/2026
53m
No alerts
Replay Analysis
N4170BCESSNA Cessna 170
→
01/19/2026
26m
No alerts
Replay Analysis
N4170BCESSNA Cessna 170
→
01/19/2026
29m
No alerts
Replay Analysis
N4170BCESSNA Cessna 170
→
01/19/2026
24m
No alerts
Replay Analysis
N4170BCESSNA Cessna 170
→
01/16/2026
31m
No alerts
Replay Analysis
N4170BCESSNA Cessna 170
→
01/16/2026
18m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window