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Search: Posts Made By: Tomaski
Showing results 1 to 35 of 209
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Forum: Tech Log
8th Dec 2019, 13:32
Replies: 17
Views: 5,221
Posted By Tomaski

When our airline first got the 737NG, HUD use was...

When our airline first got the 737NG, HUD use was optional unless it was specifically required for the conditions (mostly low vis app & landings). However, after a couple of tailstrike incidents, HUD...
Forum: Tech Log
24th Nov 2019, 02:40
Replies: 5
Views: 2,461
Posted By Tomaski

In general, a Flaps 15 approach would use an...

In general, a Flaps 15 approach would use an initial Flaps 1 call for the go-around. That said, the particular QRH and/or specific company procedures would provide the correct guidance.
Forum: Rumours & News
12th Nov 2019, 17:01
Replies: 68
Views: 69,215
Posted By Tomaski

Rwy 4L is closed during construction of the new...

Rwy 4L is closed during construction of the new 9C, so the only non-east/west runway is 4R which is 8075 feet and only CAT I for approaches. Considering arrivals and departures and periodic snow...
Forum: Rumours & News
12th Nov 2019, 09:53
Replies: 68
Views: 69,215
Posted By Tomaski

With the ongoing construction, ORD only has one...

With the ongoing construction, ORD only has one runway (4R/22L) that is not east/west and it is only a little over 8000 feet long.
Forum: Tech Log
12th Nov 2019, 09:49
Replies: 5
Views: 3,120
Posted By Tomaski

I stand corrected. Just curious, what is the...

I stand corrected. Just curious, what is the procedure if the HUD fails inside the FAF but before DH?
Forum: Tech Log
11th Nov 2019, 22:35
Replies: 5
Views: 3,120
Posted By Tomaski

In another thread, you asked about HUD Cat 3...

In another thread, you asked about HUD Cat 3 operations. The HUD is a fail-passive system and as such does not use an alert height, only a decision height. Some operators use a dual autopilot...
Forum: Tech Log
8th Nov 2019, 11:55
Replies: 4
Views: 1,207
Posted By Tomaski

After re-reading your question, I believe what...

After re-reading your question, I believe what your instructor was referring to is that the HUD is a "fail-passive" approach system, as opposed to "fail-operational", and thus limited to CAT IIIa...
Forum: Tech Log
7th Nov 2019, 19:30
Replies: 4
Views: 1,207
Posted By Tomaski

Back when we were still operating them, we were...

Back when we were still operating them, we were told the MAX's were limited to Cat II until they had accumulated enough history in operational use. I think it was an op spec issue and not necessarily...
Forum: Rumours & News
5th Nov 2019, 02:46
Replies: 4,656
Views: 4,779,339
Posted By Tomaski

While the data may not be public, I'm pretty sure...

While the data may not be public, I'm pretty sure the non-MCAS, high-AOA flight profiles have already been done (and likely redone since the accidents). It was those flight tests that identified the...
Forum: Rumours & News
4th Nov 2019, 22:53
Replies: 35
Views: 15,040
Posted By Tomaski

An informative read on the abuses of data: The...

An informative read on the abuses of data: The Tyranny of Metrics by Jerry Muller
Forum: Tech Log
4th Nov 2019, 21:38
Replies: 12
Views: 3,475
Posted By Tomaski

Not really enough information to answer...

Not really enough information to answer specifically, and I definitely am not familiar with the E-190 or the QRH procedure, but here are some of my general thoughts.

First, did the QRH procedure...
Forum: Rumours & News
2nd Nov 2019, 18:51
Replies: 35
Views: 15,040
Posted By Tomaski

I think "data driven" is one of those buzz words...

I think "data driven" is one of those buzz words that sound good but don't really get at the underlying philosophy. For example, one could take the position to assume something is fine until "the...
Forum: Tech Log
2nd Nov 2019, 02:30
Replies: 16
Views: 8,497
Posted By Tomaski

Keep in mind that for some of these procedures,...

Keep in mind that for some of these procedures, the racetrack is for descending to the FAF altitude as well as aligning with the final approach course. You could be perfectly aligned but still too...
Forum: Tech Log
1st Nov 2019, 17:13
Replies: 73
Views: 21,806
Posted By Tomaski

For now, I'm going stick with the thermodynamics...

For now, I'm going stick with the thermodynamics model, and to that point I would say that the minimum drag stable point of a low vs high bypass would show up in the speed of rotation.
Forum: Tech Log
1st Nov 2019, 15:02
Replies: 73
Views: 21,806
Posted By Tomaski

Great discussion. I was starting to question my...

Great discussion. I was starting to question my intuition with the back and forth. My initial response way back at the start was from simply observing that any system (in this case a turbine engine...
Forum: Rumours & News
30th Oct 2019, 14:58
Replies: 4,656
Views: 4,779,339
Posted By Tomaski

While not explicitly stated in any Boeing...

While not explicitly stated in any Boeing statements, the cynical side of me believes the engineering team thought this design was okay because when the stick shaker went off and the pilots went into...
Forum: Rumours & News
30th Oct 2019, 12:10
Replies: 4,656
Views: 4,779,339
Posted By Tomaski

Here's the link...

Here's the link (https://www.satcom.guru/2019/10/flawed-assumptions-pave-path-to-disaster.html).

Long read. Lot's of good, highly technical info and analysis. Better than what you would get in...
Forum: Rumours & News
29th Oct 2019, 11:56
Replies: 4,656
Views: 4,779,339
Posted By Tomaski

In the wake of the two MAX accidents, pilots...

In the wake of the two MAX accidents, pilots shouldn't have to ask to see either an Airspeed Unreliabe during takeoff or Runaway Stab Trim. Lack of familiarity and/or proficiency with these...
Forum: Rumours & News
28th Oct 2019, 13:02
Replies: 4,656
Views: 4,779,339
Posted By Tomaski

Agree, but the question I was answering is...

Agree, but the question I was answering is whether the AOA DISAGREE warning would have made any difference to the accident flight crew as they were trying to sort out the problem.
Forum: Rumours & News
27th Oct 2019, 12:21
Replies: 4,656
Views: 4,779,339
Posted By Tomaski

Regarding questions as to what the crew should...

Regarding questions as to what the crew should have done in response to the initial indications associated with the AOA malfunction......

FWIW, beginning on page 91 of the final accident report,...
Forum: Rumours & News
26th Oct 2019, 19:14
Replies: 4,656
Views: 4,779,339
Posted By Tomaski

How a flight crew would respond in the situation...

How a flight crew would respond in the situation will be a function of what they know about the underlying system and how they have been trained to execute this procedure. There are major...
Forum: Rumours & News
26th Oct 2019, 11:53
Replies: 4,656
Views: 4,779,339
Posted By Tomaski

The final accident report mentions that there...

The final accident report mentions that there have been 16 known cases of inadvertent stick shaker activations on the 737NG fleet. It does not detail the underlying cause of these activations. All...
Forum: Rumours & News
26th Oct 2019, 11:14
Replies: 4,656
Views: 4,779,339
Posted By Tomaski

Re MCAS overriding the crew - it was, in fact,...

Re MCAS overriding the crew - it was, in fact, the opposite. The Main Electric Trim (MET) overrode MCAS ever time it was used. As we saw when the Captain was the PF, aggressive MET inputs could...
Forum: Rumours & News
26th Oct 2019, 03:03
Replies: 4,656
Views: 4,779,339
Posted By Tomaski

I will again make the observation that, with the...

I will again make the observation that, with the exception of a single MCAS cycle (after which the crew extended the flaps) the ONLY malfunction that this crew was dealing with for the first five...
Forum: Rumours & News
25th Oct 2019, 22:38
Replies: 4,656
Views: 4,779,339
Posted By Tomaski

This is is what the report says about the Lion...

This is is what the report says about the Lion Air QRH procedures:

"When a non–normal situation occurs, at the direction of the pilot flying, both crew members do all memory items in their areas...
Forum: Rumours & News
25th Oct 2019, 22:31
Replies: 4,656
Views: 4,779,339
Posted By Tomaski

I'll remind you here that your question was about...

I'll remind you here that your question was about the Airspeed Unreliable procedure, which I answered specifically.

Beyond that, here is absolutely no requirement to make an either/or choice...
Forum: Rumours & News
25th Oct 2019, 20:24
Replies: 4,656
Views: 4,779,339
Posted By Tomaski

Autopilot engagement was specifically precluded...

Autopilot engagement was specifically precluded due to the Airspeed Unreliable condition.
Forum: Rumours & News
25th Oct 2019, 20:22
Replies: 4,656
Views: 4,779,339
Posted By Tomaski

Let me rephrase my answer. You asked: ...

Let me rephrase my answer. You asked:



I'm going to ignore the "hotshot pilots" comment because quite frankly there was a valid point to be made here. Prompt and accurate execution of the...
Forum: Rumours & News
25th Oct 2019, 15:45
Replies: 4,656
Views: 4,779,339
Posted By Tomaski

It's not really quite that simple. There are a...

It's not really quite that simple. There are a couple significant issues with the Airspeed Unreliable NNC. First, being somewhat generic it does not provide a lot of specific guidance on how to...
Forum: Rumours & News
25th Oct 2019, 13:17
Replies: 4,656
Views: 4,779,339
Posted By Tomaski

In the online news trade, there is a separate...

In the online news trade, there is a separate staff who is in charge of writing the headlines with the object to attract as many "clicks" as possible. This article will probably be repeated on a...
Forum: Rumours & News
25th Oct 2019, 13:10
Replies: 4,656
Views: 4,779,339
Posted By Tomaski

I haven't had a chance to read the final report...

I haven't had a chance to read the final report yet, but from the excerpts in the press I haven't seen anything that hasn't already been extensively discussed on this forum. No real surprises so far.
Forum: Rumours & News
25th Oct 2019, 13:05
Replies: 4,656
Views: 4,779,339
Posted By Tomaski

A gentle reminder that the purpose of the...

A gentle reminder that the purpose of the official accident report is to identify all the primary and secondary factors that contributed to an accident and recommend steps to mitigate those factors...
Forum: Rumours & News
24th Oct 2019, 18:43
Replies: 4,656
Views: 4,779,339
Posted By Tomaski

Entire article: Ex-Boeing Pilot Complained...

Entire article:

Ex-Boeing Pilot Complained of Management Pressure on MAX, Former Colleagues Say...
Forum: Rumours & News
24th Oct 2019, 18:38
Replies: 25
Views: 22,935
Posted By Tomaski

I'm sure that can buff that out just fine......

I'm sure that can buff that out just fine......
Forum: Rumours & News
22nd Oct 2019, 21:05
Replies: 4,656
Views: 4,779,339
Posted By Tomaski

I'm pretty sure that flight testing was done as...

I'm pretty sure that flight testing was done as part of the original certification process, and it was the results of these tests that determined the need for something like MCAS. I believe I also...
Showing results 1 to 35 of 209
 
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