PPRuNe Forums - View Single Post - FAA Grounds 787s
View Single Post
Old 14th Mar 2013, 23:05
  #1257 (permalink)  
ozaub
 
Join Date: Jan 2008
Location: australia
Posts: 139
Likes: 0
Received 6 Likes on 1 Post
In reply to inetdog at #1261, I agree that my term “skimpy testing” is far less diplomatic than NTSB’s assessment in http://www.ntsb.gov/investigations/2...cket_doc13.pdf. Note however that Boeing never bench tested complete battery system. Note too that Boeing was involved in development of RTCA’s more comprehensive “Minimum Operational Performance Standards” DO-311 but chose not to follow it. Interestingly Boeing avoided any legal obligation to meet DO-311 by just four months, because Special Certification conditions were set in Nov 2007 whereas DO-311 was issued Mar 2008.
For more info read Leeham media’s post about DO-311 at Special ‘task force’ studied lithium-ion batteries long before JAL 787 incident | Leeham News and Comment It has link to a “Comparison Matrix” of tests, some of which are quite lengthy; e.g. battery shelf life test can take up to a year. So don’t expect a quick return to service. Not if Boeing does the job properly.
ozaub is offline