Posts Tagged ‘RCS’

STS-131: ERB discuss troubleshooting and flight rationale for RRCS valve leak

Monday, March 15th, 2010

An Engineering Review Board (ERB) meeting has taken place on Monday to discuss options relating to the leak on Discovery’s Right Reaction Control System (RRCS). Five troubleshooting procedures have failed to correct the issue with a helium isolation valve – with additional troubleshooting set to take place. Should those efforts also fail, flight rationale would be [...]

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Published in Featured, Shuttle

Thruster issue requires clean up operations on Endeavour’s TPS

Tuesday, October 14th, 2008

Engineers are working on a plan to clean up around 16 tiles on Endeavour’s nose, following a ‘leak’ of a ’syrup type ooze’ from a Vernier thruster.
The small thruster (F5R) on the right side of Endeavour’s FRCS (Forward Reaction Control System) came under evaluation during a desiccant inspection that resulted in a “liquid” leaking on [...]

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Published in Shuttle