Crew Flight Test Technical Issues Crewed Mission Thruster Issues Certification Process Launch Delay Launch Crewed Missions SpaceX Crew Dragon Future Missions Launch Attempt Crewed Flight Test Challenges Setbacks NASA Astronauts Test Flights Helium Leaks Docking Technical Challenges Delays International Space Station Return Delay Performance Testing Procedures Safety Concerns Test Flight NASA Missions Crewed Flight Mission Details CST-100 Starliner Launch Preparations Mechanical Issues Mission Delays Leaks Propulsion System Calypso Glitches Manual Piloting Certification Quarantine Protocols Return to Earth Mission Preparation Astronaut Activities Mission Updates Leak Detection Testing Flight Objectives System Assessments Safety Checks Launch Preparation Operational Missions Service Module Preparations for Flight Crew Safety Testing and Training Procedures Mission Management Crew Adjustments Issues Collaboration Fuel Supply Background Missions Crew Members Equipment Problems Incident Starliner Launch Crew Dragon Mission Extension Crewed Test Flight Return Plans Thruster Problems Mission Duration Return Process Crew Activities Timeline Reaction Control System (RCS) Technical Problems Thruster Overheating Astronaut Operations Safety Issues Starliner Service Module Crewed Launch Fueling Process Debut Previous Missions Rollout Astronaut-Crewed Flight Design Vulnerability Helium Leak Launch Challenges Astronaut Training NASA Astronauts Butch Wilmore and Suni Williams Safety Measures Space X Comparison Helium Leak Assessment Commercial Space Travel Launch Details Mission Objectives Future Plans Astronaut Mission