This information is added by users of ASN. Neither ASN nor the Flight Safety Foundation are responsible for the completeness or correctness of this information.
You can contribute by
submitting additional or updated information.
| Date: | Monday 25 December 2023 |
| Time: | 18:43 UTC |
| Type: | Bombardier CRJ-701ER |
| Owner/operator: | United Express, opb SkyWest Airlines |
| Registration: | N793SK |
| MSN: | 10295 |
| Year of manufacture: | 2009 |
| Engine model: | GE CF34-8C5 |
| Fatalities: | Fatalities: 0 / Occupants: 62 |
| Other fatalities: | 0 |
| Aircraft damage: | None |
| Location: | San Francisco International Airport (KSFO), CA -
United States of America
|
| Phase: | Initial climb |
| Nature: | Passenger - Scheduled |
| Departure airport: | San Francisco International Airport, CA (SFO/KSFO) |
| Destination airport: | Aspen-Pitkin County Airport, CO (ASE/KASE) |
| Confidence Rating: | Information is only available from news, social media or unofficial sources |
Narrative:United flight UA5506, a Bombardier CRJ-701ER operated by SkyWest Airlines, declared an emergency immediately after takeoff due to the presence of "thin blue hazy smoke" in the cabin.
The flight returned to SFO for a safe landing 12 minutes after takeoff.
Sources:
https://www.youtube.com/watch?v=PNH2D9pPa40 https://www.flightradar24.com/data/aircraft/n793sk#335f5d25 Location
Revision history:
| Date/time | Contributor | Updates |
| 27-Dec-2023 20:55 |
harro |
Added |
| 27-Dec-2023 20:56 |
harro |
Updated [Total occupants, Other fatalities, ] |
The Aviation Safety Network is an exclusive service provided by:

CONNECT WITH US:
©2025 Flight Safety Foundation