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Search: Posts Made By: Tom Sawyer
Showing results 1 to 35 of 199
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Forum: Engineers & Technicians
30th Apr 2024, 23:45
Replies: 3
Views: 334
Posted By Tom Sawyer

I've just been through the FAA process, but have...

I've just been through the FAA process, but have been EASA & CAA licensed for +30 years. The FAA system is more General Aviation based and Digital systems and integrated avionics such as ATA Chapters...
Forum: Engineers & Technicians
23rd Apr 2024, 22:47
Replies: 6
Views: 888
Posted By Tom Sawyer

The SDS doesn't mention the flux ring having to...

The SDS doesn't mention the flux ring having to rotate to provide any power. It just talks about the transmitter getting power via wifi inductive coupling from the wheel remote data concentrator. The...
Forum: Engineers & Technicians
22nd Apr 2024, 01:14
Replies: 6
Views: 888
Posted By Tom Sawyer

Essentially as the above post says - From the 787...

Essentially as the above post says - From the 787 AMM SDS;

"The BSCU (Brake System Control Unit)s remove a power enable to the EBAC (Electric Brake Actuator Controller)s 60 seconds after the...
Forum: Australia, New Zealand & the Pacific
12th Mar 2024, 00:06
Replies: 227
Views: 102,200
Posted By Tom Sawyer

There was an AD in 2020 requiring all operators...

There was an AD in 2020 requiring all operators to power cycle B787s to "flush stale data" in the Common Core System every 51 days. Not sure if it could be connected if it did suffer an indication or...
Forum: Tech Log
3rd Mar 2024, 00:16
Replies: 5
Views: 1,025
Posted By Tom Sawyer

With ref to No 8 in the diagram - they are...

With ref to No 8 in the diagram - they are effectively the yaw damper range and limit for the speed. As speed inceases those indexes move in as the rudder movement range reduces to prevent too much...
Forum: Tech Log
11th Jan 2024, 05:24
Replies: 4
Views: 1,403
Posted By Tom Sawyer

Can't say I know the JP/Viper in depth, or at all...

Can't say I know the JP/Viper in depth, or at all (although we did use it for training during my time at RAF Halton sootie school 30 years ago....ahem!) so not sure if Viper has this kind of...
Forum: Rumours & News
6th Dec 2023, 21:05
Replies: 27
Views: 11,487
Posted By Tom Sawyer

Seems very similar to this event;...

Seems very similar to this event; https://www.atsb.gov.au/publications/investigation_reports/2017/aair/ao-2017-066 .
Forum: Engineers & Technicians
28th Nov 2023, 09:03
Replies: 1
Views: 454
Posted By Tom Sawyer

The only real answer to that I should think is to...

The only real answer to that I should think is to contact an approved Pt147 organisation and get them to assess you under Recognition of Prior Learning. They will then advise you on what modules you...
Forum: Engineers & Technicians
27th Nov 2023, 05:27
Replies: 10
Views: 1,142
Posted By Tom Sawyer

It must be an option. I work on various airlines'...

It must be an option. I work on various airlines' 787 and some have 1, some have 2 O2 cylinders. Can even vary across same airline but with different variant -8/9/10.
Forum: Engineers & Technicians
15th Nov 2023, 20:56
Replies: 10
Views: 1,142
Posted By Tom Sawyer

Had a look in the AMM, but there was no mention...

Had a look in the AMM, but there was no mention of any design or device to prevent cross flow leakage in event of pipework failure on one side prior to the distribution manifold. I guess Boeing did a...
Forum: Engineers & Technicians
14th Nov 2023, 22:44
Replies: 10
Views: 1,142
Posted By Tom Sawyer

https://cimg3.ibsrv.net/gimg/pprune.org-vbulletin/...

https://cimg3.ibsrv.net/gimg/pprune.org-vbulletin/484x726/787o21_a6562ced4d6961f066807b2150fb2cb1c84037a8.png

B787 - two cylinders supply what is effectively one system for the Flight Deck. There...
Forum: Tech Log
25th Aug 2023, 00:35
Replies: 4
Views: 1,319
Posted By Tom Sawyer

B787 has a knob as an alternative cursor...

B787 has a knob as an alternative cursor control...... strictly speaking not an MCDU maybe as keyboard is separate from the screen, but same function. Comes in handy as the touchpad is pretty poor....
Forum: Tech Log
10th Aug 2023, 01:17
Replies: 15
Views: 10,969
Posted By Tom Sawyer

I can confirm this.....I deal with 7-8 airlines...

I can confirm this.....I deal with 7-8 airlines as an Engineer, and all of them have different ideas of how to do the calculation and method in the Tech Log.
Forum: Tech Log
8th Aug 2023, 10:18
Replies: 17
Views: 2,362
Posted By Tom Sawyer

As an Engineer, I can say it does look like...

As an Engineer, I can say it does look like composite structure from an aircraft, but could be from many things that use this type of structure e.g. do sailing yachts, shipping products etc use...
Forum: Tech Log
22nd Jul 2023, 11:41
Replies: 3
Views: 1,044
Posted By Tom Sawyer

Without getting wiring diagrams out, and...

Without getting wiring diagrams out, and simplifying things a bit - the FADEC pushbutton makes a circuit to supply power from the aircraft supply busbars to the FADEC. Effectively this is the same...
Forum: Engineers & Technicians
24th Jun 2023, 07:56
Replies: 5
Views: 985
Posted By Tom Sawyer

I'm not sure it is as straight forward as that....

I'm not sure it is as straight forward as that. The ASUs we use for supplying the packs have a separate selection for air con or engine start. I'm guessing the compressor must have to be rated or...
Forum: Engineers & Technicians
17th Jun 2023, 09:59
Replies: 3
Views: 584
Posted By Tom Sawyer

There was a requirement with GE90s a few years...

There was a requirement with GE90s a few years back to have a sniff test with a hand held device during engine oil servicing. Not sure if that device could be purposed for a cabin air check. Never...
Forum: Accidents and Close Calls
18th May 2023, 12:15
Replies: 32
Views: 18,736
Posted By Tom Sawyer

It is getting on 20 years since I really worked...

It is getting on 20 years since I really worked the 74, but there is a body gear truck positioning actuator which fulfills the tilt actuator purpose on the forward side of the bogie. To what extent a...
Forum: Accidents and Close Calls
16th May 2023, 21:31
Replies: 32
Views: 18,736
Posted By Tom Sawyer

Seem to remember that the A340 steering...

Seem to remember that the A340 steering restrictions came in after this Sabena incident https://aviation-safety.net/database/record.php?id=19980829-1 .....which did sheer the MLG.

As for the...
Forum: Engineers & Technicians
20th Apr 2023, 08:58
Replies: 11
Views: 2,073
Posted By Tom Sawyer

I have worked for 4 well known airlines,...

I have worked for 4 well known airlines, including BA, and in general they all have a disconnect between "Corporate" and "Operational" parts of the airline. Problem is, Corporate is where the...
Forum: Rumours & News
9th Apr 2023, 11:02
Replies: 38
Views: 15,141
Posted By Tom Sawyer

In my experience, this is something to bear in...

In my experience, this is something to bear in mind with any galley or toilet leak....what is below the area of the leak. Wasn't there a video 4-5 years ago of water leaking into an A346 (?) avionic...
Forum: Engineers & Technicians
6th Apr 2023, 00:23
Replies: 3
Views: 880
Posted By Tom Sawyer

https://cimg5.ibsrv.net/gimg/pprune.org-vbulletin/...

https://cimg5.ibsrv.net/gimg/pprune.org-vbulletin/2000x1418/787_drybay_2486331e1855c6a0969fbaf6d936d967d6f59fbb.jpg
From my B787 B1 course notes, so not a good copy, but the dry bay is between ribs...
Forum: Engineers & Technicians
19th Mar 2023, 02:05
Replies: 2
Views: 525
Posted By Tom Sawyer

I moved mine from UK to Ireland due to Brexit as...

I moved mine from UK to Ireland due to Brexit as well, and can't say I noticed a major difference in processing times between the two. Typically, if you are waiting for something, it always takes...
Forum: Australia, New Zealand & the Pacific
13th Mar 2023, 23:08
Replies: 76
Views: 22,756
Posted By Tom Sawyer

As an Engineer I can confirm that I have much...

As an Engineer I can confirm that I have much experience of both platforms, and I don't think your points make any real differrence. I also work on the A380, and to access (on the ramp) some of the...
Forum: Australia, New Zealand & the Pacific
11th Mar 2023, 12:24
Replies: 76
Views: 22,756
Posted By Tom Sawyer

How do you think the fuel trucks are powered?

How do you think the fuel trucks are powered?
Forum: Tech Log
16th Dec 2022, 22:23
Replies: 3
Views: 888
Posted By Tom Sawyer

Can also have the message due to a fault with...

Can also have the message due to a fault with Electrical Master Chip Detector and/or indication system giving a false indication which is in the MEL for dispatch with conditions. Hopefully before the...
Forum: Tech Log
15th Nov 2022, 21:11
Replies: 2
Views: 1,036
Posted By Tom Sawyer

Looking around, I don't see anything...

Looking around, I don't see anything revolutionary in aerodynamics or propulsion on the horizon. Recent developments are all inside the aircraft with digital networks etc. The flying wing concept for...
Forum: Tech Log
12th Oct 2022, 02:44
Replies: 3
Views: 891
Posted By Tom Sawyer

You don't say on what type, but essentially...

You don't say on what type, but essentially follow the FIM/TSM for the fault code you have got and it should explain what do with the produced test result, including the T/S data reading.
Forum: Australia, New Zealand & the Pacific
29th Sep 2022, 02:03
Replies: 29
Views: 11,489
Posted By Tom Sawyer

As an Engineer, and one that has worked in...

As an Engineer, and one that has worked in UK/Europe, I can't say that the thought of pax compensation has even crossed my mind when dealing with an issue that could cause a delay or cancellation...
Forum: Tech Log
19th Sep 2022, 00:15
Replies: 17
Views: 3,634
Posted By Tom Sawyer

From an Engineering point of view, the answer is...

From an Engineering point of view, the answer is as the MEL quoted above. It comes down to it being one system, which includes both tillers. If any part of the control system is not functioning...
Forum: Australia, New Zealand & the Pacific
29th Aug 2022, 06:27
Replies: 118
Views: 21,972
Posted By Tom Sawyer

Framer, I totally agree that this should not...

Framer, I totally agree that this should not happen but these are positions we are put into. I have cited two examples of where we sign for items as part of the Transit Check, but they are not...
Forum: Australia, New Zealand & the Pacific
29th Aug 2022, 01:12
Replies: 118
Views: 21,972
Posted By Tom Sawyer

It has been going for years, right in front of...

It has been going for years, right in front of your eyes;
Steering By-Pass pin, shown to crew after engine start/pushback.......part of the certfied Transit Check for some airlines.
Final walk...
Forum: Australia, New Zealand & the Pacific
28th Aug 2022, 04:01
Replies: 118
Views: 21,972
Posted By Tom Sawyer

It already a legal exercise! An Engineer (should)...

It already a legal exercise! An Engineer (should) remove the covers and certify that the work has been carried out by signing the tech log for the work, and then the CRS for the release of the...
Forum: Australia, New Zealand & the Pacific
31st Jul 2022, 05:19
Replies: 67
Views: 14,143
Posted By Tom Sawyer

No mention anywhere of Saab AB as the Type...

No mention anywhere of Saab AB as the Type Certificate holder being onboard with this. This isn't just a case of slapping in a new power plant, but the airframe will require extensive modification to...
Forum: Australia, New Zealand & the Pacific
30th May 2022, 22:23
Replies: 46
Views: 22,173
Posted By Tom Sawyer

As an Engineer - it is not "a bonus" if we pick...

As an Engineer - it is not "a bonus" if we pick these things up, it is our job! As the aircraft had possibly been in parking mode for a few days, all the aircraft's ports and probes had been covered...
Showing results 1 to 35 of 199
 
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