The first entry is always the pin's source. Overall confidence is a weighted average of how firmly each reference supports the start and end times used above; a reference counts half as much for every 180 days older than the newest.
Boeing, Aug. 30, 2011: "Boeing's board of directors has approved the launch of the new engine variant of the market-leading 737, based on order commitments for 496 airplanes from five airlines."
Notes the board approval on August 30, 2011 came after record Airbus orders and a long-time customer's defection.[1]
Source of the current MAX order totals and the seat and range figures for each variant.[1]
Describes the family as MAX 7, MAX 8, MAX 200 and MAX 9 five years after launch.[1]
Companion Boeing release datelined Seattle: board approval, 496 commitments, LEAP-1B engines, 2017 deliveries, Feldmann and Teal appointments.[1]
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