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Search: Posts Made By: tdracer
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Forum: Rumours & News
16th Apr 2023, 01:19
Replies: 283
Views: 126,294
Posted By tdracer

But my point is they did all that without a major...

But my point is they did all that without a major change to the avionic architecture - had the MCAS hazard category been properly identified during the original development, they could have fixed it...
Forum: Rumours & News
14th Apr 2023, 21:04
Replies: 283
Views: 126,294
Posted By tdracer

Why? The revised MCAS logic uses both AoA inputs...

Why? The revised MCAS logic uses both AoA inputs (and IIRC, will be updated with a synthetic AoA calculation at some future point) and they didn't need change the basic architecture for the update.
Forum: Rumours & News
13th Apr 2023, 18:17
Replies: 283
Views: 126,294
Posted By tdracer

The short answer is that some level of redundancy...

The short answer is that some level of redundancy would probably have been required to meet the 10-7 requirement - there is sometimes a case for a single thread "Hazardous" system, but you need reems...
Forum: Rumours & News
28th Mar 2023, 02:45
Replies: 283
Views: 126,294
Posted By tdracer

The people who create the software are not the...

The people who create the software are not the ones who define the requirements - in aviation they seldom are even in the same company.
That's why it's so critically important to get the s/w...
Forum: Rumours & News
28th Mar 2023, 02:02
Replies: 283
Views: 126,294
Posted By tdracer

The flaw wasn't in the software - it acted...

The flaw wasn't in the software - it acted exactly as the software requirements would have it react.
The flaw was in the software requirements. Software is tested to confirm it conforms to the...
Forum: Rumours & News
9th Mar 2023, 03:59
Replies: 283
Views: 126,294
Posted By tdracer

Sorry, what you're asking is getting beyond my...

Sorry, what you're asking is getting beyond my knowledge base. I know that the 767-2C and KC-46 went through the FAA cert process (although I didn't have direct involvement in the KC-46 cert since my...
Forum: Rumours & News
9th Mar 2023, 01:11
Replies: 283
Views: 126,294
Posted By tdracer

Actually, the KC-46 was FAA certified - two FAA...

Actually, the KC-46 was FAA certified - two FAA certifications were done - the 767-2C (which was the basis for the KC-46), and the KC-46 modification was certified as well. Some aspects of the KC-46...
Forum: Rumours & News
8th Mar 2023, 19:48
Replies: 283
Views: 126,294
Posted By tdracer

KC-46 MCAS is fundamentally different than 737...

KC-46 MCAS is fundamentally different than 737 MCAS. On the KC-46, it's intended to account for everyday occurrences - the rapidly changing CG as the tanker offloads fuel. Different design...
Forum: Rumours & News
8th Mar 2023, 17:45
Replies: 283
Views: 126,294
Posted By tdracer

I've posted this before, but some either didn't...

I've posted this before, but some either didn't see or have forgotten:
The certification process groups failures into four categories - Minor, Major, Hazardous, and Catastrophic. These have...
Forum: Rumours & News
27th Jun 2022, 23:45
Replies: 283
Views: 126,294
Posted By tdracer

That may sound great in theory, but in practice...

That may sound great in theory, but in practice it's nearly impossible to implement. Engine failure at V1 must be controllable, and it's demonstrated during cert. But there is a certain probability...
Forum: Rumours & News
23rd Jun 2022, 16:13
Replies: 283
Views: 126,294
Posted By tdracer

IMHO, and based on decades of experience in...

IMHO, and based on decades of experience in aircraft certification, I think putting an outsider - with no experience with aircraft cert - in charge of the FAA is about the dumbest thing they could...
Forum: Rumours & News
3rd Mar 2022, 05:27
Replies: 283
Views: 126,294
Posted By tdracer

I've touched on this before in other threads, but...

I've touched on this before in other threads, but the FAA has experienced it's own "brain drain" problem. I was a DER/AR for over 25 years before I retired. Must of the FAA people I dealt with were...
Forum: Rumours & News
2nd Mar 2022, 22:46
Replies: 283
Views: 126,294
Posted By tdracer

Perhaps there should be a further distinction of...

Perhaps there should be a further distinction of Boeing "Test Pilots". There are two separate groups of Test Pilots - "Production" and "Experimental". Production test pilots are the ones that take...
Forum: Rumours & News
15th Dec 2021, 18:04
Replies: 283
Views: 126,294
Posted By tdracer

There was an article in the Seattle Times a few...

There was an article in the Seattle Times a few weeks ago stating that Congress wanted the FAA to go after at least two Boeing ARs who (allegedly) intentionally deceived the FAA.
...
Forum: Rumours & News
19th Oct 2021, 04:13
Replies: 283
Views: 126,294
Posted By tdracer

Big Pistons Forever As PAXboy notes, I...

Big Pistons Forever

As PAXboy notes, I seriously doubt Boeing would be allowed to fail - it's too important. Just as the government bailed out GM and Chrysler, they'll do what they need to keep...
Forum: Rumours & News
18th Oct 2021, 06:19
Replies: 283
Views: 126,294
Posted By tdracer

Where do I start? He brought the MacDac style of...

Where do I start? He brought the MacDac style of building airplanes to Boeing - a system that worked so well that it basically put MacDac out of the business of building commercial aircraft :eek:
It...
Forum: Rumours & News
18th Oct 2021, 01:23
Replies: 283
Views: 126,294
Posted By tdracer

I'll always remember when I heard that...

I'll always remember when I heard that Stonecipher had been named Boeing CEO. I was driving in to work with the radio on - there was an item in the news that Phil Condit had resigned as CEO - I...
Forum: Rumours & News
17th Oct 2021, 19:51
Replies: 283
Views: 126,294
Posted By tdracer

safetypee To the best of my knowledge, all...

safetypee

To the best of my knowledge, all the Boeing Experimental Test Pilots are ARs (basically same as DER) - certainly all the pilots I knew were ARs. While FAA pilots typically fly...
Forum: Rumours & News
17th Oct 2021, 03:21
Replies: 283
Views: 126,294
Posted By tdracer

WillowRun 6-3 I agree that Forkner is not...

WillowRun 6-3

I agree that Forkner is not alone in this - others are going to be dragged in (interesting to see high how up that goes). It wasn't Forkner's responsibility to educate the FAA about...
Forum: Rumours & News
15th Oct 2021, 18:21
Replies: 283
Views: 126,294
Posted By tdracer

When I was working, there was an agreement in...

When I was working, there was an agreement in place that - if an AR got personally sued for what he'd done as an AR - the company would pay for their defense and any settlements. But there was a...
Forum: Rumours & News
15th Oct 2021, 01:48
Replies: 283
Views: 126,294
Posted By tdracer

Exactly Having been a DER/AR for most of my...

Exactly
Having been a DER/AR for most of my career (AR is the delegated equivalent of a DER), I'm quite frankly appalled at Forkner's (alleged) behavior. If management had instructed me to do...
Showing results 1 to 21 of 21


 
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