Originally Posted by
Smythe
Intermediate testing is done to weed out design and materials issues.
This was the FINAL ground test for certification...no learning here, this is to show the ac meets specs. It blew on the blow test and as Boeing stated, they had to stop the test.
The final test for cert is to show that all of the other testing and design assumptions have passed, and the ac is ready to be cert to fly.
This reads that they stopped the test before it was completed, correct?
On the blow test, there are 3 parts..static, working load, and ultimate.
Static tests the normal pressure
Working load tests the assumes highest pressure the fuselage will have ONCE in its service.
Ultimate load tests the working load by 1.5 times.
Boeing claims it had to stop the test...at which point did it stop?
The wording, failed under much higher that normal operations, stil could mean the working load test.
Think about it, if it had failed under ultimate, 1.5...that could be understood, because ultimate at 1.5 is the assumed failure pressure.
Given all of the secrecy, lack of disclosure, and other issues, I tend to believe it failed before working load....
As noted by the "ex-VP" videos are online and the ground testing was usually a media event....this one was closed doors to regulators. (and it failed with all of the regulatory agencies present, )
Time for Boeing to start telling the truth.
To who?
Boeing only needs to report details to the certifying agency and not to the public or its competitors
The customers need assurances that a any process affecting their delivery is being followed.
If adjustments are called for and approved by the FAA then that may be reportable to all.