Rocket Lab postpones first commercial launch after issue during fueling test

Rocket Lab said Tuesday it will push back the first commercial launch of its light-class Electron rocket from New Zealand by a few weeks to address a problem uncovered during a recent fueling test. The company announced the launch slip on Twitter, saying that the Rocket Lab launch team “saw some unusual behavior with a motor controller” during a wet dress rehearsal, a test often employed by launch providers to practice countdown procedures and verify that rocket and ground systems are ready for liftoff. More

(Source: SpaceFlight Now - Apr 18)