PPRuNe Forums - Search Results
PPRuNe Forums

Go Back  PPRuNe Forums > Search Forums
Reload this Page >

Search Results

Register
FAQ
Calendar
Wikiposts
Today's Posts
Search
Vendor Directory
 
Page 1 of 2
1
2
Search: Posts Made By: EXDAC
Showing results 1 to 35 of 57
Search took 0.00 seconds.
Forum: Accidents and Close Calls
20th Mar 2024, 14:41
Replies: 1,950
Views: 935,775
Posted By EXDAC

The term "inspection hatch" would be even more...

The term "inspection hatch" would be even more confusing. It would imply that the "thingy" was put there because there was a need to gain inspection access to something that was otherwise...
Forum: Accidents and Close Calls
18th Mar 2024, 20:49
Replies: 1,950
Views: 935,775
Posted By EXDAC

How do you explain the tethers? Are you saying...

How do you explain the tethers? Are you saying the reports that the plug is opened for periodic inspection are invalid? Why would the plug be supported by hinges with lift assist springs if it was...
Forum: Accidents and Close Calls
21st Feb 2024, 20:25
Replies: 1,950
Views: 935,775
Posted By EXDAC

So such much has be written and so little has...

So such much has be written and so little has been understood.

The damage photos in the NTSB report make it clear that the plug tore past the stop fittings and the rollers broke out of the guide...
Forum: Accidents and Close Calls
21st Feb 2024, 19:13
Replies: 1,950
Views: 935,775
Posted By EXDAC

And that follow on section clearly says the...

And that follow on section clearly says the spings hold the plug up so and only an outward force is required to complete opening. The first part of the AMM quote is nonsense and not reconcilable with...
Forum: Accidents and Close Calls
21st Feb 2024, 19:03
Replies: 1,950
Views: 935,775
Posted By EXDAC

All the pictures I have seen would indicate that....

All the pictures I have seen would indicate that.

(I have been involved with the preparation of part 25 aircraft support documentation and sometimes found it easier to write sections myself rather...
Forum: Accidents and Close Calls
21st Feb 2024, 18:15
Replies: 1,950
Views: 935,775
Posted By EXDAC

I don't much care what you or anyone else calls...

I don't much care what you or anyone else calls them. I do have concerns about deriving conclusions as to their function from a name that has no attribution.
Forum: Accidents and Close Calls
21st Feb 2024, 17:10
Replies: 1,950
Views: 935,775
Posted By EXDAC

What Boeing documentation uses that term? I must...

What Boeing documentation uses that term? I must have missed the reference.
Forum: Accidents and Close Calls
20th Feb 2024, 20:04
Replies: 1,950
Views: 935,775
Posted By EXDAC

If I were specifying this plug for ease of...

If I were specifying this plug for ease of opening and closing as required for maintenance it would have the following features -

1. The mass of the door would be fully supported by the springs so...
Forum: Accidents and Close Calls
20th Feb 2024, 17:29
Replies: 1,950
Views: 935,775
Posted By EXDAC

The speculation should have been ended long ago...

The speculation should have been ended long ago when images of the plug in the open but tethered position were published. These images clearly show the springs are supporting the weight of the plug...
Forum: Accidents and Close Calls
20th Feb 2024, 17:13
Replies: 1,950
Views: 935,775
Posted By EXDAC

Well I don't believe that. I believe that, in...

Well I don't believe that. I believe that, in service, the 4 bolts share the force that is holding the hinge springs compressed.
Forum: Accidents and Close Calls
9th Feb 2024, 15:42
Replies: 1,950
Views: 935,775
Posted By EXDAC

I speculate that this is a conduit that is added...

I speculate that this is a conduit that is added to support the later WiFi system installation. This seems to be an optional installation and I don't know what provisions are included when the...
Forum: Accidents and Close Calls
8th Feb 2024, 18:41
Replies: 1,950
Views: 935,775
Posted By EXDAC

Why would you assume that when NTSB report...

Why would you assume that when NTSB report states:

"Both upper guide fittings installed on the forward and aft sides of the MED plug, respectively,
were fractured vertically through the inboard...
Forum: Accidents and Close Calls
8th Feb 2024, 18:25
Replies: 1,950
Views: 935,775
Posted By EXDAC

Almost certainly a special clip designed for that...

Almost certainly a special clip designed for that application. Much the same idea as the clips used to lock control cable turnbuckles.
...
Forum: Accidents and Close Calls
8th Feb 2024, 17:56
Replies: 1,950
Views: 935,775
Posted By EXDAC

Imagine one person closing and securing the plug....

Imagine one person closing and securing the plug. Right hand pulls the plug in and then down. A boot at the bottom frees both hands. The cable tie would most easily be fitted round a stop pad pair...
Forum: Accidents and Close Calls
8th Feb 2024, 14:13
Replies: 1,950
Views: 935,775
Posted By EXDAC

The suggestions that a cable tie would be strong...

The suggestions that a cable tie would be strong enough to hold the door closed if aided by the interior trim make no sense to me. There is no trim panel fitted in the photo that shows the cable tie....
Forum: Accidents and Close Calls
7th Feb 2024, 13:57
Replies: 1,950
Views: 935,775
Posted By EXDAC

That statement is fully consistent with departure...

That statement is fully consistent with departure of a single temporary pin before the plug opened. It could have secured the plug for many flights before the accident flight. It would be held in...
Forum: Accidents and Close Calls
7th Feb 2024, 11:39
Replies: 1,950
Views: 935,775
Posted By EXDAC

What do you suppose holds the door up with the...

What do you suppose holds the door up with the hinge slides extended to their stops when the plug is open? Much earlier in this discussion there seemed to be general agreement that it was held up by...
Forum: Accidents and Close Calls
6th Feb 2024, 22:49
Replies: 1,950
Views: 935,775
Posted By EXDAC

About the only thing I see new in the report is...

About the only thing I see new in the report is the images of the damage caused as the stops bypassed and the guide fittings tore out. It was obvious to most that the plug could not have departed if...
Forum: Accidents and Close Calls
6th Feb 2024, 16:39
Replies: 1,950
Views: 935,775
Posted By EXDAC

It was of interest to me that they are checking...

It was of interest to me that they are checking clearances with metric feeler gages. Did Boeing overcome the general US resistance to metrication? Also would would seem to answer the question of...
Forum: Accidents and Close Calls
2nd Feb 2024, 22:27
Replies: 1,950
Views: 935,775
Posted By EXDAC

The photos of Honeywell's Boeing 720 being cut up...

The photos of Honeywell's Boeing 720 being cut up were quite upsetting.

Only 2 more days until scheduled release of the prelim NTSB report so maybe we'll get back on topic then.
Forum: Accidents and Close Calls
2nd Feb 2024, 00:37
Replies: 1,950
Views: 935,775
Posted By EXDAC

Yes, I remember these instructions too. The...

Yes, I remember these instructions too. The pictures showed the removed overwing exit door placed on the seat armrests.
Forum: Accidents and Close Calls
23rd Jan 2024, 15:45
Replies: 1,950
Views: 935,775
Posted By EXDAC

Yes, but that is a picture of a door which needs...

Yes, but that is a picture of a door which needs latch fittings. The question was whether those latch fitting would be installed for the plug and be available for retrofit of a door.
Forum: Accidents and Close Calls
23rd Jan 2024, 00:09
Replies: 1,950
Views: 935,775
Posted By EXDAC

One posible explanation has been expressed here...

One posible explanation has been expressed here several times and, to the best of my knowledge, has not been refuted.

A single temporary locating pin, bolt, or madrel, was inserted in one guide...
Forum: Accidents and Close Calls
22nd Jan 2024, 23:32
Replies: 1,950
Views: 935,775
Posted By EXDAC

The conversion is probably a lot higher cost that...

The conversion is probably a lot higher cost that staying with a problem free plug. At what point would the conversion seem inexpensive compared to having a large part of the fleet grounded...
Forum: Accidents and Close Calls
22nd Jan 2024, 13:24
Replies: 1,950
Views: 935,775
Posted By EXDAC

I would say "before the stops overlap" as...

I would say "before the stops overlap" as "engagement" suggests there is some locking or other interaction taking place. There seems to be general agreement that the stop pins and stop pads don't...
Forum: Accidents and Close Calls
22nd Jan 2024, 10:33
Replies: 1,950
Views: 935,775
Posted By EXDAC

I would only take one short madrel to hold the...

I would only take one short madrel to hold the door in place. Such a tool would be ideal for positioning the door and holding it against the springs while the first bolt was inserted.

A madrel,...
Forum: Accidents and Close Calls
21st Jan 2024, 19:57
Replies: 1,950
Views: 935,775
Posted By EXDAC

How do you explain the photo (posted early and...

How do you explain the photo (posted early and included in the linked 737 door videos) of an open door plug supported only by the wire tethers and the bottom hinges. That photo shows the springs are...
Forum: Accidents and Close Calls
17th Jan 2024, 20:10
Replies: 1,950
Views: 935,775
Posted By EXDAC

Perhaps his best video on this topic. I wonder...

Perhaps his best video on this topic. I wonder how much it was motivated by all the erroneous assumptions posted in this thread. ("Got to keep the loonies on the path")
Forum: Accidents and Close Calls
17th Jan 2024, 15:31
Replies: 1,950
Views: 935,775
Posted By EXDAC

Alaska customers received an email link to this...

Alaska customers received an email link to this video:

https://www.youtube.com/watch?v=BPUGOFS0Dpg&ab_channel=AlaskaAirlines
Forum: Accidents and Close Calls
17th Jan 2024, 14:47
Replies: 1,950
Views: 935,775
Posted By EXDAC

I have found a review of the docket to sometimes...

I have found a review of the docket to sometimes be far more informative than even the final report. Does NTSB ever open the docket to public access before the final report is issued?
Forum: Accidents and Close Calls
17th Jan 2024, 14:25
Replies: 1,950
Views: 935,775
Posted By EXDAC

This image is a crop of a previously posted image...

This image is a crop of a previously posted image of a de-activated door. I believe the gray material that spans the image is the flexible door seal not the fuselage skin.
...
Forum: Accidents and Close Calls
17th Jan 2024, 12:04
Replies: 1,950
Views: 935,775
Posted By EXDAC

Does NTSB say these pictures show cracks in the...

Does NTSB say these pictures show cracks in the door frame? If not, is it possible the marked cracks are gaps between the door seal and the door seal retainer?
Forum: Accidents and Close Calls
15th Jan 2024, 14:16
Replies: 1,950
Views: 935,775
Posted By EXDAC

I wonder when "UP" and FWD" with corresponding...

I wonder when "UP" and FWD" with corresponding arrows were marked on the door plug. Would those marking have been required for production assembly or only for someone unfamiliar with how the plug...
Forum: Accidents and Close Calls
14th Jan 2024, 23:43
Replies: 1,950
Views: 935,775
Posted By EXDAC

Thanks for the reference. It includes the...

Thanks for the reference. It includes the statement - "Set Screws are manufactured to DIN 933 and Bolts to DIN 931."

The problem is that DIN 933 does not, at least as far as my search has gone,...
Forum: Accidents and Close Calls
14th Jan 2024, 21:23
Replies: 1,950
Views: 935,775
Posted By EXDAC

I searched the inox.ie site for "set screw". I...

I searched the inox.ie site for "set screw". I found no definition and no products. Where did you find the definition you quoted?

It's easy enough to find specs for set screws that are fully...
Showing results 1 to 35 of 57
 
Page 1 of 2
1
2


 
Forum Jump

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.