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Search: Posts Made By: DaveReidUK
Showing results 1 to 35 of 152
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Forum: Accidents and Close Calls
14th Mar 2024, 12:44
Replies: 1,950
Views: 935,708
Posted By DaveReidUK

That might make sense if we were talking about an...

That might make sense if we were talking about an event where bolts that had been fitted had somehow managed to unfasten themselves in service. But we aren't.
Forum: Accidents and Close Calls
29th Feb 2024, 06:28
Replies: 1,950
Views: 935,708
Posted By DaveReidUK

Good summary of the last 2000-odd posts.

Good summary of the last 2000-odd posts.
Forum: Accidents and Close Calls
21st Feb 2024, 22:10
Replies: 1,950
Views: 935,708
Posted By DaveReidUK

I'm reminded that Chris Brady paraphrased the AMM...

I'm reminded that Chris Brady paraphrased the AMM description of the opening sequence in one of his videos. He subsequently acknowledged that it was incorrect:



I don't think his influence...
Forum: Accidents and Close Calls
21st Feb 2024, 18:57
Replies: 1,950
Views: 935,708
Posted By DaveReidUK

Does the AMM really say that ?? Doesn't the...

Does the AMM really say that ??

Doesn't the door plug need to move up to allow the rollers to clear the guide tracks ?
Forum: Accidents and Close Calls
21st Feb 2024, 17:42
Replies: 1,950
Views: 935,708
Posted By DaveReidUK

The term is quoted in several of Chris Brady's...

The term is quoted in several of Chris Brady's excellent videos. I assume he didn't just make it up.
Forum: Accidents and Close Calls
20th Feb 2024, 07:00
Replies: 1,950
Views: 935,708
Posted By DaveReidUK

IIRC, your reasoning for that was maintenance...

IIRC, your reasoning for that was maintenance related (while recognising that maintenance is the only context in which the door plug would normally be opened).
Forum: Accidents and Close Calls
18th Feb 2024, 07:22
Replies: 1,950
Views: 935,708
Posted By DaveReidUK

The vertical movement doesn't need to be...

The vertical movement doesn't need to be prevented, only limited to an amount that would keep the stops partially engaged until the next reasonably hard landing drove the door plug back down to its...
Forum: Accidents and Close Calls
15th Feb 2024, 18:05
Replies: 1,950
Views: 935,708
Posted By DaveReidUK

Both the principal FDR/CVR vendors (Honeywell and...

Both the principal FDR/CVR vendors (Honeywell and L3/Harris) have (different) 2-hour and 25-hour CVRs in their product lines. AFAIK there is no provision for restricting newer 25-hour units so that...
Forum: Accidents and Close Calls
15th Feb 2024, 06:51
Replies: 1,950
Views: 935,708
Posted By DaveReidUK

About 15 years ago I did some work which...

About 15 years ago I did some work which necessitated getting a pretty good grip on the NTSB's data dictionary that underpins their accident investigating and reporting system. While the range of...
Forum: Accidents and Close Calls
11th Feb 2024, 21:10
Replies: 1,950
Views: 935,708
Posted By DaveReidUK

Scary though.

Scary though.
Forum: Accidents and Close Calls
9th Feb 2024, 22:36
Replies: 1,950
Views: 935,708
Posted By DaveReidUK

And, having now (I think) established that the...

And, having now (I think) established that the stops have plane faces, it seems possible/likely that the door plug may have gradually inched clear of the stops over the course of a number of flights...
Forum: Accidents and Close Calls
8th Feb 2024, 21:44
Replies: 1,950
Views: 935,708
Posted By DaveReidUK

At the point where the stops have just cleared,...

At the point where the stops have just cleared, the roller is still engaged in the guide. The damage noted to the guides would suggest that was the point where the door plug departed, hence the...
Forum: Accidents and Close Calls
8th Feb 2024, 18:06
Replies: 1,950
Views: 935,708
Posted By DaveReidUK

My preferred scenario (which I think is more...

My preferred scenario (which I think is more likely) is that closing and securing the door plug would be a two-person job not requiring any acrobatics. Also speculation, of course ...
Forum: Accidents and Close Calls
8th Feb 2024, 17:31
Replies: 1,950
Views: 935,708
Posted By DaveReidUK

Where else are you suggesting would be a better...

Where else are you suggesting would be a better place to use a tie in order to keep the door closed ?
Forum: Accidents and Close Calls
8th Feb 2024, 11:48
Replies: 1,950
Views: 935,708
Posted By DaveReidUK

Pure coincidence that the zip tie just happened...

Pure coincidence that the zip tie just happened to be fitted in such a way as to keep the two parts of one of the stops together and prevent the door plug from opening ...
Forum: Accidents and Close Calls
7th Feb 2024, 21:29
Replies: 1,950
Views: 935,708
Posted By DaveReidUK

Yes, Figures 14 and 16 differ from each other in...

Yes, Figures 14 and 16 differ from each other in several respects, including the presence/absence, respectively, of the upper bolts. There is also no evidence of cabin furnishings in Fig 14, so...
Forum: Accidents and Close Calls
7th Feb 2024, 13:29
Replies: 1,950
Views: 935,708
Posted By DaveReidUK

I can't take any credit for this, as it's been...

I can't take any credit for this, as it's been pointed out to me privately by a forumite, but this is an interesting photo (P17, Figure 16) from the NTSB report (my blow-up):
...
Forum: Accidents and Close Calls
7th Feb 2024, 06:34
Replies: 1,950
Views: 935,708
Posted By DaveReidUK

True - most, but not all. Coincidentally, there's...

True - most, but not all. Coincidentally, there's another thread running on PPRuNe about passengers cracking their heads on PSUs in turbulence because they hadn't fitted their restraining bolts,...
Forum: Accidents and Close Calls
6th Feb 2024, 22:13
Replies: 1,950
Views: 935,708
Posted By DaveReidUK

Well, more accurately, under 1g conditions it...

Well, more accurately, under 1g conditions it isn't enough ...
Forum: Accidents and Close Calls
4th Feb 2024, 08:26
Replies: 1,950
Views: 935,708
Posted By DaveReidUK

Do they have softer heads? :O

Do they have softer heads? :O
Forum: Accidents and Close Calls
4th Feb 2024, 07:06
Replies: 1,950
Views: 935,708
Posted By DaveReidUK

I'm pretty sure I read somewhere that the...

I'm pretty sure I read somewhere that the aircraft is/has been examined for possible damage to the floor structure that may have resulted from the pressure differential above/below it.

A bit...
Forum: Accidents and Close Calls
2nd Feb 2024, 21:04
Replies: 1,950
Views: 935,708
Posted By DaveReidUK

As I'm sure you'll recall, a JCB is very...

As I'm sure you'll recall, a JCB is very effective. :O
Forum: Accidents and Close Calls
2nd Feb 2024, 16:20
Replies: 1,950
Views: 935,708
Posted By DaveReidUK

It's OK, he's got somebody whispering in his ear...

It's OK, he's got somebody whispering in his ear telling him what to do. :O
Forum: Accidents and Close Calls
2nd Feb 2024, 08:02
Replies: 1,950
Views: 935,708
Posted By DaveReidUK

That will be news to the MRO in question, who...

That will be news to the MRO in question, who took more than a year to do the conversion. :O
Forum: Accidents and Close Calls
1st Feb 2024, 07:01
Replies: 1,950
Views: 935,708
Posted By DaveReidUK

If you'd ever seen the spring that powered the...

If you'd ever seen the spring that powered the TriStar doors, that wouldn't be a concern.
Forum: Accidents and Close Calls
31st Jan 2024, 22:31
Replies: 1,950
Views: 935,708
Posted By DaveReidUK

Then it's a plug. As is any door that doesn't...

Then it's a plug. As is any door that doesn't open initially outwards.
Forum: Accidents and Close Calls
30th Jan 2024, 21:33
Replies: 1,950
Views: 935,708
Posted By DaveReidUK

Fair point, though it's worth bearing in mind...

Fair point, though it's worth bearing in mind that the A320 FCOM (with basically the same door stop design) describes them as follows:
Forum: Accidents and Close Calls
30th Jan 2024, 08:01
Replies: 1,950
Views: 935,708
Posted By DaveReidUK

The plug door blew out on the aircraft's 151st...

The plug door blew out on the aircraft's 151st flight. TT would have been a bit over 500 hours.
Forum: Accidents and Close Calls
30th Jan 2024, 06:26
Replies: 1,950
Views: 935,708
Posted By DaveReidUK

While your comments are undoubtedly valid, bear...

While your comments are undoubtedly valid, bear in mind that they could equally have been made about 11,000 or so narrow-body Airbuses which also have a "thing called a plug" at each corner, and a...
Forum: Accidents and Close Calls
29th Jan 2024, 22:07
Replies: 1,950
Views: 935,708
Posted By DaveReidUK

The deactivated E/E door is invisible from within...

The deactivated E/E door is invisible from within the cabin, so no scope for catastrophic confusion
Forum: Accidents and Close Calls
29th Jan 2024, 21:56
Replies: 1,950
Views: 935,708
Posted By DaveReidUK

No, the statement that the aircraft can be...

No, the statement that the aircraft can be reconfigured (at cost) is perfectly correct.

Boeing might well recommend fitting the deactivated E/E instead - the bean-counters will certainly be...
Forum: Accidents and Close Calls
29th Jan 2024, 14:46
Replies: 1,950
Views: 935,708
Posted By DaveReidUK

Yes, that has been mentioned a number of times...

Yes, that has been mentioned a number of times earlier in the thread. Aimed at lessors, obviously.
Forum: Accidents and Close Calls
29th Jan 2024, 12:49
Replies: 1,950
Views: 935,708
Posted By DaveReidUK

I don't think there is any doubt or ambiguity...

I don't think there is any doubt or ambiguity over what it does, even if the terminology used is somewhat confusing.

The 737-9 (and the -900ER) are built with two additional large holes behind the...
Forum: Accidents and Close Calls
29th Jan 2024, 06:36
Replies: 1,950
Views: 935,708
Posted By DaveReidUK

Think about it, It's a door that isn't...

Think about it,

It's a door that isn't supposed to ever be used as a door.

Rather than a doorway that isn't supposed to ever be used as a doorway ...
Forum: Accidents and Close Calls
27th Jan 2024, 08:25
Replies: 1,950
Views: 935,708
Posted By DaveReidUK

See post #1323 for a link to the original 24 Jan...

See post #1323 for a link to the original 24 Jan Seattle Times article.
Showing results 1 to 35 of 152
 
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