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Search: Posts Made By: safetypee
Showing results 1 to 35 of 47
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Forum: Rumours & News
12th Dec 2019, 16:29
Replies: 4,656
Views: 4,791,209
Posted By safetypee

In addition to Bend alot #4409, see web page for...

In addition to Bend alot #4409, see web page for Committee on Transport hearings with preprepared witness testimony -...
Forum: Rumours & News
3rd Dec 2019, 15:44
Replies: 4,656
Views: 4,791,209
Posted By safetypee

A decision soon; or softening up for bad news. ...

A decision soon; or softening up for bad news.

https://www-cnbc-com.cdn.ampproject.org/c/s/www.cnbc.com/amp/2019/12/02/boeing-invites-industry-to-737-max-factory-in-charm-offensive.html
Forum: Rumours & News
28th Nov 2019, 08:50
Replies: 4,656
Views: 4,791,209
Posted By safetypee

Oldn, #4178 "2.2. On the peculiarities of the...

Oldn, #4178 "2.2. On the peculiarities of the trim (relief) of forces" beginning on page 159.

Also from the recommendations: - It is recommended that the Boeing Company. Page 175
“5.21. Consider...
Forum: Rumours & News
27th Nov 2019, 16:01
Replies: 4,656
Views: 4,791,209
Posted By safetypee

See the report of the 737 NG accident discussed...

See the report of the 737 NG accident discussed in https://www.pprune.org/rumours-news/627546-flydubai-crash-rvi-final-report-out.html.

Re trim and assumptions about pilot previous experience,...
Forum: Rumours & News
23rd Nov 2019, 15:48
Replies: 4,656
Views: 4,791,209
Posted By safetypee

The basic Max did not meet the certification...

The basic Max did not meet the certification requirements; Max + MCAS similarly deficient.
Various MCAS modifications still not compliant.

The recent TC text appears to suggest that the ‘lesser’...
Forum: Rumours & News
15th Nov 2019, 17:45
Replies: 4,656
Views: 4,791,209
Posted By safetypee

‘… the entire industry that has moved in the...

‘… the entire industry that has moved in the shareholders'/beancounters' direction.’
Because we are a very safe industry; complacency, drifting standards, less oversight, … ?

The holes in the...
Forum: Rumours & News
5th Nov 2019, 21:42
Replies: 4,656
Views: 4,791,209
Posted By safetypee

Another view of the EASA comments:-...

Another view of the EASA comments:- https://www-rte-ie.cdn.ampproject.org/c/s/www.rte.ie/amp/1088643/
Return to service date not defined.
Focus on new software - Collins avionics.
Forum: Rumours & News
5th Nov 2019, 15:29
Replies: 4,656
Views: 4,791,209
Posted By safetypee

fgrieu, :ok: The runway trim situation could...

fgrieu, :ok:

The runway trim situation could still be a problem, as you indicate re ET302.

My reading between the lines and from collated opinion, the combined software modifications and...
Forum: Rumours & News
5th Nov 2019, 13:32
Replies: 4,656
Views: 4,791,209
Posted By safetypee

Latest from EASA

A good update; more technical information from EASA @...
Forum: Rumours & News
5th Nov 2019, 12:35
Replies: 4,656
Views: 4,791,209
Posted By safetypee

Show us the data

We should be reasonably confident that ‘the data’ exists, but less so in the way it was interpreted and applied in design and certification.

For those who wish to see the data; you are given it -...
Forum: Rumours & News
1st Nov 2019, 16:28
Replies: 4,656
Views: 4,791,209
Posted By safetypee

Peter H, ‘MCAS was used because it was already...

Peter H, ‘MCAS was used because it was already there’, and if implemented appropriately it would be a non issue - except.

Considering the CS definitions of stall warning (shake ~ 1.1Vs) and stall...
Forum: Rumours & News
11th Oct 2019, 16:15
Replies: 4,656
Views: 4,791,209
Posted By safetypee

Tom, #3002. Thanks for the explanations; these...

Tom, #3002.
Thanks for the explanations; these are today’s aircraft - ‘as is’. The interesting issues are ‘what could be’ based on the latest reports, after modification.

The number of ‘Disagree’...
Forum: Rumours & News
10th Oct 2019, 17:48
Replies: 4,656
Views: 4,791,209
Posted By safetypee

Interesting aspects emerging from the link (8...

Interesting aspects emerging from the link (8 Oct) @#3004
Checklist discussions involve those listed below; the last three could (or should) involve new annunciations / alerting.
Unreliable...
Forum: Rumours & News
9th Oct 2019, 12:52
Replies: 4,656
Views: 4,791,209
Posted By safetypee

David, #2980, Being positive, the aircraft will...

David, #2980,
Being positive, the aircraft will be fixed.

Training is not a fix, and that which will be required will be consequential to the technical solution.

The level or mix of software /...
Forum: Rumours & News
3rd Oct 2019, 15:40
Replies: 4,656
Views: 4,791,209
Posted By safetypee

Tom, #2852, The central issue is the...

Tom, #2852,
The central issue is the certification process opposed to faulting companies or organisations, however deficient they appear to have been.

Previous safety records only contribute to...
Forum: Rumours & News
1st Oct 2019, 15:49
Replies: 4,656
Views: 4,791,209
Posted By safetypee

Pilot Error

boofhead - The myth of human error
...
Forum: Rumours & News
25th Sep 2019, 15:45
Replies: 4,656
Views: 4,791,209
Posted By safetypee

Boeing Adding Safety Oversight, Will Examine Flight Deck Design

https://aviationweek.com/commercial-aviation/boeing-adding-safety-oversight-will-examine-flight-deck-design

“… expected to create a centralized safety-centric organization, and plans to examine...
Forum: Rumours & News
14th Aug 2019, 14:46
Replies: 4,656
Views: 4,791,209
Posted By safetypee

Dave your previous might be misinterpreted on two...

Dave your previous might be misinterpreted on two counts.
‘Flight envelope’ implies an in-trim condition (speed?), whereas if the more likely tech design was that the trim cutout was relative to the...
Forum: Rumours & News
14th Aug 2019, 08:51
Replies: 4,656
Views: 4,791,209
Posted By safetypee

Maninthebar, #1832 not known; the background is...

Maninthebar, #1832 not known; the background is in the EASA reference below.

“Simulation has demonstrated that the thumb switch trim does not have enough authority to completely trim the aircraft...
Forum: Rumours & News
6th Aug 2019, 06:48
Replies: 4,656
Views: 4,791,209
Posted By safetypee

#1786, “At some point the pilot would have to...

#1786, “At some point the pilot would have to make the determination that it is actually a runaway…”
This is central to the concern about piloting contributions in alleviating malfunctions.
How is...
Forum: Rumours & News
4th Aug 2019, 12:31
Replies: 4,656
Views: 4,791,209
Posted By safetypee

Further insight to the limitations of human...

Further insight to the limitations of human performance in surprising situations.
737 stall and recovery training after briefing, a situation which had clear indication and alerting of the...
Forum: Rumours & News
4th Aug 2019, 07:56
Replies: 4,656
Views: 4,791,209
Posted By safetypee

The pilot cannot be part of a redundant system.

The latest EASA Safety Review* states:
“The safety risk portfolio presented in Table 7 links the safety issues to key risk areas. The highest contribution to Aircraft Upset and Runway Excursion are...
Forum: Rumours & News
3rd Aug 2019, 14:58
Replies: 4,656
Views: 4,791,209
Posted By safetypee

Gordon, Fail-safe aspects; agreed - MCAS...

Gordon,
Fail-safe aspects; agreed - MCAS operation, where output involves trim.

The trim runaway scenario is part of a systems safety assessment applicable to all models of 737, this has to...
Forum: Rumours & News
3rd Aug 2019, 13:57
Replies: 4,656
Views: 4,791,209
Posted By safetypee

“ Since the responsibility for preventing a...

“ Since the responsibility for preventing a runaway is moved from the pilots to a more reliable flight control system …”
As currently described / discussed, the modified preventative system appears...
Forum: Rumours & News
23rd Jul 2019, 12:22
Replies: 4,656
Views: 4,791,209
Posted By safetypee

Some difficulty in following the digital...

Some difficulty in following the digital discussions, but is the cure entirely in Boeing hands.

Boeing must be involved with the overall specification and hold certification responsibility, but...
Forum: Rumours & News
15th Jul 2019, 15:09
Replies: 4,656
Views: 4,791,209
Posted By safetypee

#1399 “The delivery stop will affect production...

#1399
“The delivery stop will affect production sooner than later and that trickles down through the supply chain. That might become some big issue and this seems to be the reason why they kept the...
Forum: Rumours & News
8th Jul 2019, 16:30
Replies: 4,656
Views: 4,791,209
Posted By safetypee

#1241, Is an unusual description of trim - stick...

#1241, Is an unusual description of trim - stick force and aircraft control.
Most professional pilots already have an adequate understanding of this and the various relationships, including speed -...
Forum: Rumours & News
8th Jul 2019, 16:04
Replies: 4,656
Views: 4,791,209
Posted By safetypee

#1236, The speculation about the time that MCAS...

#1236,
The speculation about the time that MCAS could run in normal operation is misleading, without foundation.
Previous technical discussions identified a maximum time proportional to the...
Forum: Rumours & News
8th Jul 2019, 15:22
Replies: 4,656
Views: 4,791,209
Posted By safetypee

#1234, There is no evidence that changes in...

#1234,
There is no evidence that changes in training are directly related to deliberate cost savings.
Recent changes may be the introduction of evidence based training, new requirements, schedules....
Forum: Rumours & News
5th Jul 2019, 15:26
Replies: 4,656
Views: 4,791,209
Posted By safetypee

Re # 1069, The misuse of a rhetorical or...

Re # 1069,
The misuse of a rhetorical or unanswerable question to infer that differences between the crew’s mental performance, those that survived and those who did not, was the cause of the...
Forum: Rumours & News
5th Jul 2019, 15:03
Replies: 4,656
Views: 4,791,209
Posted By safetypee

Re # 1066, :ouch: ‘Myth’. The CAA safety note -...

Re # 1066, :ouch:
‘Myth’. The CAA safety note - LoC thread does not exclude the MAX.
‘Myth’. The Magenta Line video did not focus on ‘automation dependency’ (a later term), or poor crew response...
Forum: Rumours & News
5th Jul 2019, 13:56
Replies: 4,656
Views: 4,791,209
Posted By safetypee

Debunking Dis-information.

Choice of selective wording; ‘Deny’, but where world reports use of ‘Refute’ would be more accurate, countering unfounded allegations of poor training standards (who made those). Subsequent, one...
Forum: Rumours & News
30th Jun 2019, 16:28
Replies: 4,656
Views: 4,791,209
Posted By safetypee

yoko1, Apparently you either have not read the...

yoko1,
Apparently you either have not read the EASA query of the NG trim system (previously referenced), or you choose to ignore what was written.
Similarly you overlook that ease of trimming in...
Forum: Rumours & News
26th Jun 2019, 07:41
Replies: 4,656
Views: 4,791,209
Posted By safetypee

fdr, Thank you for an informative and...

fdr,
Thank you for an informative and educational post # 663, representing the very best professional interchange, with benefit for individuals, forum, and industry.
I have learnt from the...
Forum: Rumours & News
23rd Jun 2019, 13:35
Replies: 4,656
Views: 4,791,209
Posted By safetypee

Not for MCAS, providing the modifications provide...

Not for MCAS, providing the modifications provide sufficient protection; MCAS becomes a background function similar to STS. No action required no alert required; MCAS ‘off’, pilot awareness.
...
Showing results 1 to 35 of 47
 
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