Boeing 757-200 N557NW's speed reports jumped to 911.7 knots and back
The aircraft was reported near Chelsea, Michigan. Readings on either side of the spike were separated from it by 15 seconds.
Operator
Delta Air Lines
Stories in which the aircraft broadcast a callsign assigned to Delta Air Lines (designator DAL). 1 story (15 Aug 2026).
Aircraft types
The operator comes from the callsign the aircraft broadcast. It does not show who owned the aircraft or who was aboard.