Boeing Inc (NYSE:BA) shares are trading lower Wednesday following a disappointing third-quarter earnings report. Union members are expected to vote on a new proposed contract. Here’s what you need to know. What To Know: Boeing reported $17.85 billion in revenue, which was down 1% year-over-year and came in below the expected $17.93 billion. The company reported an adjusted loss of $10.44 per share, missing estimates for a loss of $10.34 per share, according to Benzinga Pro. Boeing’s adjusted operating loss ballooned to $5.99 billion, up from $1.09 billion a year ago. The core operating loss ma…