N121D is operated by SONGBIRD AVIATION LLC between Healdsburg Municipal Airport (O31) and Marin County Airport - Gnoss Field (KDVO). The flight is most often flown by a BEECH Beech Bonanza 33. Typical block time is 1h 6m. SkyMeter has observed 32 legs of this flight number via ADS-B.

FLIGHTS
32
last 90 days
AVG DURATION
1h 6m
tracked time
📅
SERVICE PERIOD
05/29/2025 → 07/10/2026
first → last seen
🗺
ROUTES / TYPES
12 / 1
city pairs · airframes
INCIDENT RATE
6.2%
2 flagged

Routes flown

By count · last 90 days

9
O31 KDVO
2
avg 21m · Healdsburg → Marin County Airport - Gnoss Field
1
avg 16m · Marin County Airport - Gnoss Field → Petaluma
1
avg 3h 51m · Marin County Airport - Gnoss Field → Coeur D'Alene - Pappy Boyington Field
1
avg 1h 23m · Paso Robles → Marin County Airport - Gnoss Field
1
avg 4h 4m · Coeur D'Alene - Pappy Boyington Field → Marin County Airport - Gnoss Field
1
avg 38m · Noltas → Marin County Airport - Gnoss Field
KDVO O31
1
avg 16m · Marin County Airport - Gnoss Field → Healdsburg
1
avg 1h 12m · Marin County Airport - Gnoss Field → Paso Robles
1
avg 24m · Petaluma → Marin County Airport - Gnoss Field

Aircraft types

Equipment used on this number

1

Safety profile

Flagged flights · last 90 days

Go-arounds
0
Unstable approach
2
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 N121D

30
06/20/2026
1h 43m
△ Unstable approach
06/20/2026
3h 51m
△ Unstable approach
06/05/2026
1h 14m
△ Unstable approach
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window