N
N311KD
HELICOPTER LLC · WBU → KGNB
N311KD is operated by HELICOPTER LLC between Boulder Municipal Airport (KBDU) and Granby Grand County Airport (KGNB). The flight is most often flown by a . Typical block time is 1h 33m. SkyMeter has observed 39 legs of this flight number via ADS-B.
✈
FLIGHTS
39
last 90 days
⏱
AVG DURATION
1h 33m
tracked time
📅
SERVICE PERIOD
05/28/2025 → 08/23/2026
first → last seen
🗺
ROUTES / TYPES
31 / 1
city pairs · airframes
⚠
INCIDENT RATE
12.8%
5 flagged
Routes flown
By count · last 90 days
Aircraft types
Equipment used on this number
Safety profile
Flagged flights · last 90 days
Go-arounds
0
Unstable approach
5
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 N311KD
07/16/2026
1h 42m
△ Low approach-stability score
07/15/2026
13m
△ Low approach-stability score
© SkyMeter ·
All flight data subject to ODbL attribution
·
Tracked: 90-day window