and roger chaffee. during a launch test in january 1967 a fire broke out in the capsules cabin and spread quickly all 3 astronauts were killed. nasa blamed the fire on deficiencies in capsule design workmanship and quality control. the agency made improvements to the spacecraft and to operational procedures. meanwhile nasa continued to experiment with using parachutes to return apollo capsule safely to earth. a more difficult challenge was the design and construction of the vehicle that would actually land the astronauts on the surface of the mood. armstrong took part in flight tests early versions of the lunar module. armstrong took part in flight tests over earlier versions of the lunar. module.