CONFIRMEDDate confidence: CONFIRMEDStated as firmHow firmly the source words the date: confirmed, scheduled, estimated, delayed or unverified.Show all CONFIRMED pins82% CONFIDENCEOverall confidence: 82%How well the pin's source and references back up its dates.Weighted average of how firmly 3 references, the source included, support the pin's start and end times; a reference counts half as much for every 180 days older than the newestShow all pins at 75% confidence or betterBoeing's[1] own feature caption reads "The first 777 takes off from Paine Field in Everett on its first flight on June 12, 1994"; Wikipedia's[3] 777 infobox and EBSCO[2] give the same date.
On 12 June 1994 the first Boeing 777 took off from Paine Field in Everett, Washington, flown by chief test pilot John Cashman, starting an 11-month test program for the world's largest twinjet.
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