1、Lessons Learned Entry: 1116Lesson Info:a71 Lesson Number: 1116a71 Lesson Date: 1999-02-01a71 Submitting Organization: HQa71 Submitted by: David M. LengyelSubject: International Space Station (ISS) Program/Extravehicular Activity (EVA)/Training Description of Driving Event: Safety Implications of Ext
2、ravehicular Activity (EVA) Training in the Russian HydrolabLesson(s) Learned: The safety implications of EVA training for U.S. and international partner astronauts in the Russian Hydrolab are not well understood. In particular, the implications of higher suit pressures and Russian bends protocols ha
3、ve not been thoroughly analyzed.Recommendation(s): NASA should study the procedures used in the Russian Hydrolab to determine their safety and monitor all Hydrolab testing when U.S. astronauts are involved.Evidence of Recurrence Control Effectiveness: NASA concurs with the ASAP recommendation. The G
4、agarin Cosmonaut Training Center (GCTC) Hydrolab facility is an established cosmonaut training facility. The GCTC Hydrolab is a neutral buoyancy training facility. The facility is an above-ground, circular tank with a maximum depth of 12 meters; however, a false floor limits the maximum useable dept
5、h to 10 meters. The false floor can be raised above the water level for positioning mockups, walk-through training, or hardware repair and modification. The standards applied to the Hydrolabs design and operations are not NASA standards but instead the Russian equivalent.NASA safety and medical repr
6、esentatives have performed a safety assessment of the GCTC Hydrolab facility utilizing the NASA Safety Standard for Underwater Facility and Non Open Water Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Operations, NSS/WS 1740.10, and other JSC requi
7、rements as a guide for directing the safety evaluation of the Hydrolab. The assessment focused on the suit hardware and its interfaces, including the effects of suit pressure/physiological depth, facility systems that support training, and pool deck systems. The Hydrolab is an acceptable facility fo
8、r conducting operations with NASA personnel and equipment with one caveat, NASA medical personnel have requested that the Russians demonstrate proficiency in the use of the hyperbaric chamber at the GCTC. This demonstration was planned to occur prior to April 30, 1999. Beyond the hyperbaric chamber
9、proficiency demonstration, the condition of this training facility does not pose a direct or unreasonable risk to U.S. personnel or vital NASA equipment. NASA and GCTC have agreed to several procedural and hardware related enhancements that will be made to the Hydrolab facility to increase the overa
10、ll safety. JSC safety and medical representatives will be available in the Hydrolab as part of the test team during all suited operations in the Hydrolab and will continue to monitor safety and take further action as required.For additional information, the complete agreement is documented in EVA Pr
11、oject Office memo XA-99-031, dated February 18, 1999, subject: Gagarin Cosmonaut Training Center (GCTC) Hydrolab Safety For U.S. Personnel.Documents Related to Lesson: N/AMission Directorate(s): a71 Space Operationsa71 Exploration SystemsAdditional Key Phrase(s): a71 Aerospace Safety Advisory Panela
12、71 Extra-Vehicular Activitya71 Flight Equipmenta71 Ground Equipmenta71 Medicala71 Research & Developmenta71 Risk Management/Assessmenta71 Safety & Mission Assurancea71 Training EquipmentAdditional Info: Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Approval Info: a71 Approval Date: 2002-02-12a71 Approval Name: Bill Loewya71 Approval Organization: HQa71 Approval Phone Number: 202-358-0528Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
