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Search: Posts Made By: ozaub
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Forum: Rumours & News
2nd Jan 2015, 02:56
Replies: 2,185
Views: 1,032,266
Posted By ozaub

Willl05 you’re right. Let’s recap: 7 Jan...

Willl05 you’re right. Let’s recap:

7 Jan 2013, battery self-ignited on JAL 787, on ground at Boston. NTSB report is at http://www.ntsb.gov/investigations/AccidentReports/Reports/AIR1401.pdf. My...
Forum: Rumours & News
31st Dec 2014, 23:31
Replies: 2,185
Views: 1,032,266
Posted By ozaub

Another battery failure

Further to my posts at #2158 & 2159, apparently there has been another battery failure since the 787 was re-certificated with improved batteries in a fire proof box. Details at...
Forum: Rumours & News
3rd Dec 2014, 01:29
Replies: 2,185
Views: 1,032,266
Posted By ozaub

NTSB has just published its report on Boston...

NTSB has just published its report on Boston battery fire. It's at http://www.ntsb.gov/doclib/reports/2014/AIR1401.pdf . Have not finished studying it yet but conclusions (below) point to...
Forum: Rumours & News
27th Sep 2014, 11:01
Replies: 2,185
Views: 1,032,266
Posted By ozaub

I agree with tdracer #2143. Working on the 747...

I agree with tdracer #2143. Working on the 747 in late 1960s we all joked that “Quality is king but the schedule is GOD”. With all due respect to his post #2149 , I disagree; DERs were answerable...
Forum: Rumours & News
20th Mar 2014, 06:02
Replies: 2,185
Views: 1,032,266
Posted By ozaub

787 Certification Review

FAA/Boeing has just published a joint report on 787 certification issues http://www.faa.gov/about/plans_reports/media/787_Report_Final.pdf It's soothing in its conclusions but reveals seriously...
Forum: Rumours & News
6th Jun 2013, 02:13
Replies: 2,185
Views: 1,032,266
Posted By ozaub

JAL has good reason to be sensitive about Boeing...

JAL has good reason to be sensitive about Boeing repairs. In 1985 JAL suffered worst loss of life in a single aircraft accident after Boeing botched repair of rear pressure bulkhead on a 747. See...
Forum: Rumours & News
14th May 2013, 02:11
Replies: 2,185
Views: 1,032,266
Posted By ozaub

JAL is telling its customers that although nobody...

JAL is telling its customers that although nobody knows what went wrong Boeing has addressed all possible faults. See Identification of All Probable Causes and Development of Corrective Actions |...
Forum: Rumours & News
11th Apr 2013, 11:07
Replies: 2,185
Views: 1,032,266
Posted By ozaub

Concerning "rubber stamping" of foreign...

Concerning "rubber stamping" of foreign approvals, long ago major authorities like Australian DCA usually sent a small team of technical specialists to "validate" foreign certifications. We probed...
Forum: Rumours & News
11th Apr 2013, 00:09
Replies: 2,185
Views: 1,032,266
Posted By ozaub

The only vaguely comparable grounding was when...

The only vaguely comparable grounding was when British and French authorities rightly suspended Concorde's C of A, after Paris accident. It took 14 months to lift the suspension. Boeing/FAA will get...
Forum: Rumours & News
10th Apr 2013, 04:41
Replies: 2,185
Views: 1,032,266
Posted By ozaub

Whenever the 787 eventually returns to service I...

Whenever the 787 eventually returns to service I want FAA and/or Boeing to publicly explain how the improved battery installation meets each and every one of the Special Certification Conditions;...
Forum: Rumours & News
20th Mar 2013, 23:08
Replies: 2,185
Views: 1,032,266
Posted By ozaub

I fear that EEng #1368 and poorjohn #1369 are...

I fear that EEng #1368 and poorjohn #1369 are right. Boeing will contend that cell temperature (>570 deg F) and pressure (enough to rupture cell) which were clearly unsafe at Boston are “safe” in...
Forum: Rumours & News
19th Mar 2013, 22:26
Replies: 2,185
Views: 1,032,266
Posted By ozaub

Perhaps we're getting too hung up about the fire....

Perhaps we're getting too hung up about the fire. Airport firies and NTSB say there was a fire, and my Gran said there’s no smoke without fire; but Boeing claims there wasn’t one. Who do we...
Forum: Rumours & News
16th Mar 2013, 22:46
Replies: 2,185
Views: 1,032,266
Posted By ozaub

Recertification will be even more challenging...

Recertification will be even more challenging than procedure outlined by Helix Von Smelix #1312 because the standard is statistical risk, not absolute. NTSB quantified the risk requirement; “Boeing...
Forum: Rumours & News
15th Mar 2013, 22:03
Replies: 2,185
Views: 1,032,266
Posted By ozaub

Boeing's PR version of "nothing can go wrong, go...

Boeing's PR version of "nothing can go wrong, go wrong, go wrong..." is "nothing did go wrong, go wrong,go wrong..."!
Forum: Rumours & News
14th Mar 2013, 23:05
Replies: 2,185
Views: 1,032,266
Posted By ozaub

In reply to inetdog at #1261, I agree that my...

In reply to inetdog at #1261, I agree that my term “skimpy testing” is far less diplomatic than NTSB’s assessment in...
Forum: Rumours & News
14th Mar 2013, 03:57
Replies: 2,185
Views: 1,032,266
Posted By ozaub

Willoz269; put simply the battery must not burn...

Willoz269; put simply the battery must not burn except perhaps once or twice during entire life of 787 fleet. If battery does overheat or burn, fire must be contained and emissions safely vented. Of...
Forum: Rumours & News
13th Mar 2013, 09:53
Replies: 2,185
Views: 1,032,266
Posted By ozaub

From Press Release – FAA Approves Boeing...

From Press Release – FAA Approves Boeing 787 Certification Plan (http://www.faa.gov/news/press_releases/news_story.cfm?newsId=14394) the good news is:
1. “The plan establishes specific...
Forum: Rumours & News
4th Mar 2013, 01:49
Replies: 2,185
Views: 1,032,266
Posted By ozaub

When I worked at Boeing on 747, one company...

When I worked at Boeing on 747, one company slogan was "quality is king". To which we added "but the schedule is God". Another slogan was "pride in excellence". Sadly Boeing now seems to have neither...
Forum: Rumours & News
28th Feb 2013, 23:11
Replies: 2,185
Views: 1,032,266
Posted By ozaub

It's happened before!

Mention of the 757 makes it opportune to note Boeing's difficulties with the introduction of aramid (KEVLAR) reinforced plastics on the 757/767. Aramid composites were chosen (in preference to...
Forum: Rumours & News
21st Feb 2013, 09:04
Replies: 2,185
Views: 1,032,266
Posted By ozaub

Concorde was grounded for 16 months, so 10 for...

Concorde was grounded for 16 months, so 10 for the 787 looks about right. Given the proven dangers of li-ion, the need to prove compliance with special certification conditions plus the need to cross...
Forum: Rumours & News
19th Feb 2013, 21:14
Replies: 2,185
Views: 1,032,266
Posted By ozaub

You’re right Cool Guys (#893), in certification...

You’re right Cool Guys (#893), in certification we never say “never’. Instead SCCs refer to “extremely remote” possibility. FAA Advisory Circular 25-1309 defines that as “not expected during entire...
Forum: Rumours & News
19th Feb 2013, 00:06
Replies: 2,185
Views: 1,032,266
Posted By ozaub

Containment alone is not legal

Please, if you have not already done so, read the eight Special Certification Conditions which were set for use of Li-Ion batteries on the 787 Federal Register, Volume 72 Issue 196 (Thursday, October...
Forum: Rumours & News
17th Feb 2013, 00:14
Replies: 2,185
Views: 1,032,266
Posted By ozaub

Surely the 787 engineers and their bosses in...

Surely the 787 engineers and their bosses in Chicago realize that all eight Special Conditions for the use of Lithium Ion batteries (posted at #111) are US Federal Law. It is not a legal option to...
Forum: Rumours & News
28th Jan 2013, 01:21
Replies: 2,185
Views: 1,032,266
Posted By ozaub

"SEATTLE Two additional NTSB investigators...

"SEATTLE

Two additional NTSB investigators were sent to Seattle to take part in FAA's comprehensive review. One of the investigators will focus on testing efforts associated with Boeing's root...
Forum: Rumours & News
26th Jan 2013, 02:19
Replies: 2,185
Views: 1,032,266
Posted By ozaub

Agree with cool guys option 2. Paraphrasing the...

Agree with cool guys option 2. Paraphrasing the special conditions listed at #111; the batteries shall not burn except perhaps once or twice in life of aircraft type. If batteries do burn fire must...
Forum: Rumours & News
21st Jan 2013, 23:02
Replies: 2,185
Views: 1,032,266
Posted By ozaub

Please mods stop reposting of the li-ion special...

Please mods stop reposting of the li-ion special conditions. I listed them days ago back at #111. And no, 787 does not comply with it's special certification conditions so it must not fly
Forum: Rumours & News
19th Jan 2013, 01:33
Replies: 2,185
Views: 1,032,266
Posted By ozaub

In order to certificate the 787, Boeing had to...

In order to certificate the 787, Boeing had to prove compliance with all the Special Conditions for L/I batteries listed at#111. Doing so took years. Service incidents now show that the aircraft does...
Forum: Rumours & News
18th Jan 2013, 05:02
Replies: 2,185
Views: 1,032,266
Posted By ozaub

FAA Special Conditions

The incidents that led to the grounding of the B787 look suspiciously like the potential dangers of adopting L/I batteries that were spelt out by FAA in Special Certification Conditions at Federal...
Showing results 1 to 28 of 28


 
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