REG NASA-LLIS-1247-2002 Lessons Learned International Space Station Caution and Warning Alerts Inhibits.pdf

1、Lessons Learned Entry: 1247Lesson Info:a71 Lesson Number: 1247a71 Lesson Date: 2002-06-17a71 Submitting Organization: HQa71 Submitted by: David LengyelSubject: International Space Station/Caution and Warning Alerts/Inhibits Description of Driving Event: Lack of visual or aural warning that caution a

2、nd warning functions have been inhibited.Lesson(s) Learned: There is no visual or aural indication to the Crew that safety-related alerts have been inhibited.Recommendation(s): Develop an appropriate alerting system to remind the crew that Caution & Warning functions have been inhibited and/or to en

3、able the crew to limit the inhibit to only a specific period. Avoid the need to inhibit C&W alerts by countering the root causes of false alarms whenever possible. Evidence of Recurrence Control Effectiveness: The C&W SIT will address this condition and bring recommendations forward to the Program f

4、or disposition. The Caution and Warning System Integration Team (CWSIT) considers eliminating false alarms as a primary objective for planned Caution and Warning System improvements. Documents Related to Lesson: N/AMission Directorate(s): Provided by IHSNot for ResaleNo reproduction or networking pe

5、rmitted without license from IHS-,-,-a71 Space Operationsa71 Exploration SystemsAdditional Key Phrase(s): a71 Aerospace Safety Advisory Panela71 Emergency Preparednessa71 Human Factorsa71 Independent Verification and Validationa71 Risk Management/Assessmenta71 Safety & Mission Assurancea71 Softwarea71 Spacecrafta71 Test & VerificationAdditional Info: Approval Info: a71 Approval Date: 2002-06-27a71 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-,-,-