The troubled US aircraft manufacturer, Boeing, said on Wednesday that its first quarter annual loss had decreased to -$343 million, or -$0.56 per share, thereby beating Wall Street estimates. Those figures compare with -$414 million, or -$0.69 per share, from last year’s first quarter. Excluding items, Boeing reported adjusted earnings of -$388 million or -$1.13 per share for the period. Analysts on average had expected the company to earn -$1.65 per share, according to figures compiled by Thomson Reuters. Analysts’ estimates typically exclude special items. The company’s revenue for the quart…