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Astronauts return to American section of ISS following suspected ammonia leak

RATE THIS! +25
Posted in Science on 15th Jan, 2015 07:10 PM by AlexMuller

Astronauts aboard the ISS evacuated the American section of the station as an alarm was triggered, warning the crew of a potential ammonia leak. Astronauts took shelter in the Russian compartments of the ISS as operators attempted to discern whether the alarm was indeed a toxic leak.

 
At the time of the alarm, flight controllers at NASA's Johnson Space Center, Houston observed a pressure increase in the outpost's water loop for thermal control system B, followed by a spike in cabin pressure. Together these anomalies could have constituted early indicators of an ammonia leak. Aboard the station, ammonia is vital to the running of the facility, being utilized as a coolant and heat transfer agent for the outpost's many systems.
 
Whilst mission control failed to detect any direct indicators of an ammonia leak via the sensors on board the station, at 3 am CST the crew were given the order to evacuate to the Russian segment as a safety precaution, shutting down all non-essential equipment, and sealing the doors behind them as they went. ESA astronaut Samantha Cristoforetti reassured her 270,000-strong twitter following, tweeting, “Hey everybody, thanks for your concern. We're all safe & doing well in the Russian segment.“
 

At 2:05 pm CET, in the knowledge that the station and her crew had never been in any actual danger, mission controllers directed the astronauts to don their gas masks and re-enter the US compartments of the station. Following an atmospheric sampling carried out by Samantha Cristoforetti and NASA's Terry Virts, it was confirmed that no ammonia was present. 


Tags: spaceISSorbitspace stationNASA

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Comments

Author: Guest
Posted: 2015-01-16
+1
Just a scary episode, a little drama. However, the job these people a doping and danger they can encounter has to appreciated and respected. It is great that good care and monitoring are in place Reply


 

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