A “systems issue” that cropped up late last week has put the Bombardier Learjet 85’s first flight on an indefinite hold, a company spokeswoman told AIN. This latest hurdle came just hours after the company said weather had prompted it to scrub the all-composite midsize jet’s scheduled maiden flight last Thursday. The spokeswoman said that engineers are working on a software update to fix the undisclosed issue, but they cannot give an estimate of how long this will take. “We will fly the aircraft when we are ready,” she added.