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National Aeronautics and Space Administration

EVA23Water Intrusion

Ground Team focused on the drink bag as the source of the w ater. ECFT-3.2.2

The Team had Channelized Attention on the drink bag as the primary source of w ater in the helmet ECFT-3.2.2.1

Team's set of responses led to a delay in identifying the vent loop as the source of the w ater leak. ECFT-3.2.2.2

Ground team did not identify PLSS as actual source of w ater. ECFT-3.2.2.3

Cognitive Task Oversaturation contributed to the team’s delayed identification of the actual source of ECFT-3.2.2.4

Figure 3-63. Contributing Factors under ECFT 3.2.2

The Team had Channelized Attention on the drink bag as the primary source of w ater in the helmet ECFT-3.2.2.1

FCT/Crew incorrectly attributed Water in helmet during EVA 22 to the DIDB. ECFT-3.2.2.1.1

Flight Control Team did not perform investigation of w ater source. ECFT-3.2.2.1.1.1

Flight Control Team accepted the explanation that the w ater w as from the drink bag. ECFT-3.2.2.1.1.1.1

Ground team allow ed time pressures of impending EVA to influence actions.

ISS Community Perception w as that drink bags leak.

Program emphasis w as to maximize crew time on orbit for utilization.

ECFT-3.2.2.1.1.1.1.1

ECFT-3.2.2.1.1.1.2.1

ECFT-3.2.2.1.1.1.2

Flight Control Team's perception of the anomaly report process as being resource intensive made them ECFT-3.2.2.1.1.1.3

Figure 3-64. Contributing Factors under ECFT 3.2.2.1

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ISS EVA Suit Water Intrusion Mishap Investigation Report  

Report of the NASA Mishap Investigation Board examining the high visibility close call event of July 16, 2013 when ESA astronaut Luca Parmit...