At 0414z BOEING 503 recovered at Paine Field, then did a high speed RTO on 34L before returning to the Boeing ramp. Unusual for a B-1 flight to return after sunset. Flightaware landing time is incorrect, the tower closed at 0400z and flight crew may not have closed flightplan with Seattle Center or Seattle FSS.
WC224 Continental Airlines N77022 taxi test before first flight.
At 0245z, BOEING 003 N787BX is southbound 150 miles south of Everett conducting VHF radio checks with Boeing Everett until radio contact is lost, then they will reverse course and head north. 003 landed at BFI at 0530z and conducted an HF comm check with Boeing Seattle while landing.
787 number 22 is moved from the flightline to ATS Hangar 3.
WD951 Korean Air HL8210 does a high speed taxi after returning from a test flight. In the afternoon HL8210 went on a photo flight over the Olympic Peninsula with BOEING 501 747-8F N747EX.
See an exclusive photo from Royal S. King here: Korean Air 777