CKS371 (Kalitta Air), an evacuation flight from Wuhan, just landed at March ARB in Riverside, CA (east of LA). They stopped in Anchorage to refuel and screen all 201 passengers. All tested negative for CoV and allowed to continue to California. The aircraft was a 747-400(F), N705CK.
My question as a private pilot and airliner enthusiast- both legs were filed and flown at FL270. Other 744's and 748's on the same route at the same time were at the expected FL330-400, and previous flights flown by N705CK were also at higher, "normal" altitudes. The lower altitude does not seem to be related to winds aloft, weather, or a limitation of this specific tail number.
Any ideas on why they flew at this low altitude?
Local ABC news coverage, reasonably accurate:
https://abc7.com/health/americans-fl...ounty/5888390/
N705CK flights:
https://www.flightradar24.com/data/aircraft/n705ck