Boeing Says In March Delivered 46 Airplanes Vs Airbus' 60 Deliveries; Delivered 143 Jets In Q1 Vs 130 In Q1 2025; March Deliveries Included 34 737s; In Q1 Booked 149 New Orders After Cancellations & Conversions; Backlog As Of March 31 At 6,127 Vs 6,151 As Of Feb 28; In March Booked 33 Gross Orders And Had 2 Cancellations