| Date: | Saturday 20 May 2023 |
| Time: | c. 14 |
| Type: |  Viking Air DHC-6 Twin Otter 400 |
| Owner/operator: | Seafly LLC |
| Registration: | N153QS |
| MSN: | 869 |
| Year of manufacture: | 2012 |
| Total airframe hrs: | 1641 hours |
| Fatalities: | Fatalities: 2 / Occupants: 2 |
| Aircraft damage: | Destroyed, written off |
| Category: | Accident |
| Location: | 54 km W off Half Moon Bay Airport, CA (HAF) -
 Pacific Ocean
|
| Phase: | En route |
| Nature: | Ferry/positioning |
| Departure airport: | Santa Rosa-Sonoma County Airport, CA (STS/KSTS) |
| Honolulu-Daniel K. Inouye International Airport, HI (HNL/PHNL) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Information is only available from news, social media or unofficial sources |
A DHC-6 Twin Otter 400, N153QS, crashed into the Pacific Ocean about 54 km west of the Half Moon Bay Airport (HAF), California.
The aircraft had departed Santa Rosa-Sonoma County Airport, California (STS) at 15:21 UTC (08:21 local time) on a flight to Honolulu International Airport, Hawaii (HNL).
ADS-B data suggests that the aircraft at some point turned back, heading for HAF, until it crashed at 14:15 local time.
Sources:
sfchronicle.com
twinotterworldnews.com
Location
Revision history:
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