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NASA-LLIS-4218: Lessons Learned - Component Leak Check Methods
Abstract: Component and system leakage measurement techniques should be optimized to provide consistent leak check data accurate enough to verify acceptability of the component and system in the most cost efficient manor possible.
NASA-LLIS-1760: Lessons Learned – Process Control to Prevent Incorrect Assembly (Video Lesson)
Abstract: Abstract:
A video clip lesson learned on the topic of Process Control. Actuators inside the tail enable the rudder speed brake panels to steer and slow the Space Shuttle during descent and landing. ...
A video clip lesson learned on the topic of Process Control. Actuators inside the tail enable the rudder speed brake panels to steer and slow the Space Shuttle during descent and landing. ...
NASA-LLIS-4770: Lessons Learned - Recurring Flight Project Problems Evince "Common Threads"
Abstract: Abstract:
A Common Threads Workshop was held by JPL in 1996 and 1997 as a venue for seasoned flight project managers to convey knowledge of recurring problems or situations that dominate the project ...
A Common Threads Workshop was held by JPL in 1996 and 1997 as a venue for seasoned flight project managers to convey knowledge of recurring problems or situations that dominate the project ...
NASA-LLIS-2043: Lessons Learned – Understand What 'Cleaning' Means In The Context Of The Flight Item
Abstract: Abstract:
Isopropyl alcohol (IPA) was used to "clean" instrument parts. Residual IPA interfered with the instrument Level 1 requirements. Subsequent helium purging did not reduce IPA concentrations to ...
Isopropyl alcohol (IPA) was used to "clean" instrument parts. Residual IPA interfered with the instrument Level 1 requirements. Subsequent helium purging did not reduce IPA concentrations to ...
NASA-LLIS-1799: Lessons Learned – Erroneous Onboard Status Reporting Disabled IMAGE's Radio
Abstract: Abstract:
The loss of the IMAGE satellite was attributed to a Single Event Upset-induced "instant trip" of the Solid State Power Controller (SSPC) that supplies power to the single-string Transponder. ...
The loss of the IMAGE satellite was attributed to a Single Event Upset-induced "instant trip" of the Solid State Power Controller (SSPC) that supplies power to the single-string Transponder. ...
NASA-LLIS-5479: Lessons Learned - Proper Manufacturing, Handling, Use, Storage and Care Of Metal Bellows Flex Hoses
Abstract: Metal bellows flex hoses are very susceptible to reverse bending low cycle fatigue which results in leakage via a through crack in the bellows.
NASA-LLIS-5477: Lessons Learned - Enhanced Fuel Cell Repair Capability at KSC
Abstract: When fuel cell power plants (FCPs) were developed for the Space Shuttle, KSC had minimal capability to repair them. As a result, even FCPs needing only minor repairs had to be returned to the vendor for repair. In the ...
NASA-LLIS-4022: Lessons Learned Spare Parts Procurement
Abstract: Spare parts for new systems should be procured and stocked prior to handing-over the system for contract maintenance. This did not occur for the elevators in the new Operations Support Building (OSB) II building at the ...
NASA-LLIS-2217: Lessons Learned – Maintain a Master Schedule of Supplier Audits
Abstract: Abstract:
When NASA contractors and suppliers must host consecutive visits by auditors from different NASA Centers, it may prove unduly burdensome to supplier facility management and promote an inefficient ...
When NASA contractors and suppliers must host consecutive visits by auditors from different NASA Centers, it may prove unduly burdensome to supplier facility management and promote an inefficient ...
NASA-LLIS-1759: Lessons Learned – Process Control: Ensuring Suppliers Understand Specs (Video Lesson)
Abstract: Abstract:
A video clip lesson learned on the topic of Process Control. A ?squeegee,? a wafer-thin wedge of plastic, is used on the Space Shuttle Solid Rockets to apply the adhesive that bonds critical ...
A video clip lesson learned on the topic of Process Control. A ?squeegee,? a wafer-thin wedge of plastic, is used on the Space Shuttle Solid Rockets to apply the adhesive that bonds critical ...