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National Aeronautics and Space Administration

EVA23Water Intrusion

5.0 Recommendations

Recommendation

Proximate Cause (PC), Intermediate Cause(I), Contributing Factor (CF), Root Cause(RC), Observation (O)

Recommendation R-1:

The ISS Program must reiterate to all team members that, if they feel that crew time is needed to support their system, a request and associated rationale must be elevated to the ISS Program for an appropriate decision.

Recommendation R-2:

ISS Program should ensure that the FMEA/CILs are updated and maintained and MOD should make them required reading/study for all EVA Systems instructors and Flight Controllers up to and including FCR operators as well as their proficiency flows. EVA safety and Engineering MER support personnel should also include this in their training flows

I-7

Recommendation R-3:

MOD SSTF instructors should ensure that training includes use of the FMEA/CIL to develop failure scenarios for use in integrated and stand-alone simulations.

I-7

Recommendation R-4:

The ISS Program should ensure that updates are made to the EMU hazard reports to reflect the possibility of water in the helmet resulting in a catastrophic event due to asphyxiation.

I-16

Recommendation R-5:

The ISS Program should ensure that the FMEA/CIL is updated and reviewed thoroughly from end-to-end every two years to ensure currency with participation by Engineering, MOD, Safety, Medical, and appropriate contractor personnel.

I-19

Recommendation R-6:

The ISS Program should ensure that all instances of free water and contamination in the EMU are documented and investigated, with corrective action taken, if appropriate.

RC-5

Recommendation R-7:

MOD must lead the development of appropriate flight rules and procedures to address the course of action to take in the event of water in the helmet.

I-15

Recommendation R-8:

The ISS Program should investigate alternate materials that effectively perform the helmet anti-fogging function without the risk of eye irritation.

O-2

Recommendation R-9:

The ISS Program should investigate alternate CO2 sensor designs that eliminate the sensitivity to moisture.

O-3

Recommendation R-10:

MOD should evaluate how personnel who are located in the POCC facility and not part of the active flight control team interact with the active flight control team and ensure that lines of communication and the decision making chain is not compromised.

O-4

RC-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...

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...

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