Tests for aircraft model in which Penwortham aid worker Sam Pegram was killed have started
A US aviation regulator has started formal test flights for the Boeing 737 Max jet - the model in which a Penwortham aid worker died after it crashed in Ethiopia.
The aircraft was grounded last year after two crashes killed 346 people, including Sam Pegram, 25.
He was flying to Kenya with a colleague to deliver a training programme when the plane crashed six minutes after takeoff.
Last week his father made an passionate plea to American regulators who are considering the future of the controversial jet.
Even if the tests go well, months of safety checks will be needed.