747 maintenance manuals - issue from 1990 lacking detail
There was a story on The Register a few days ago about an issue from many years ago with 747 manuals, there's a certain style to their articles and headlines which may annoy the uninitiated, but here it is:
The Register: I'm not Boeing anywhere near that: Coder whizz heads off jumbo-sized maintenance snafu The technical side of the story is plausible if a bit sketchy but the journalist hasn't fully researched the story. It would be interesting to know what actually happened from the maintenance perspective, i.e. there must have been an update that went out with a notice of the previous omission? I'm also left wondering if this IBM RS6000 CD-Rom multimedia solution was the only format the manuals were available in? I.e. there's far less impact if 90% of the world was still using paper manuals at the time? I think it would be useful to get a bit more detail on this to get the article amended with the extra information. The reporting of the comment about "I saw no press reports of bad maintenance." is a little disingenuous. I'm not sure I'd expect the mainstream press to pick up on the many updates and ADs and that comment doesn't even reflect a complete survey just what one (interested) person happened to notice or not notice. |
After reading the comments on that article, I'll never complain about thread drift on PPRuNe again ! :O
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Originally Posted by FairWeatherFlyer
(Post 10607071)
The reporting of the comment about "I saw no press reports of bad maintenance." is a little disingenuous. I'm not sure I'd expect the mainstream press to pick up on the many updates and ADs and that comment doesn't even reflect a complete survey just what one (interested) person happened to notice or not notice.
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Originally Posted by EEngr
(Post 10608733)
The RS/6000 software used to display maintenance manuals may not have fallen under the scope of an airworthiness directive.
This does remind me a bit of modern e-readers. I've heard mixed opinions of these for technical books from "great, I can carry everything around" to "won't touch them because the repagination/formating ruins the content". Device independent output is surprisingly non-trivial. |
Originally Posted by FairWeatherFlyer
(Post 10609707)
Device independent output is surprisingly non-trivial.
The PDF document format is pretty reliable. In part because it is actually a paper document formatting language at it's heart. And using an off-the-shelf commercial reader tends to be more reliable than custom solutions. With millions of users, Adobe is likely going to hear about missing content pretty quickly if the general public starts to lose pages from their favorite novels. |
Originally Posted by EEngr
(Post 10612698)
The PDF document format is pretty reliable. In part because it is actually a paper document formatting language at it's heart. And using an off-the-shelf commercial reader tends to be more reliable than custom solutions. With millions of users, Adobe is likely going to hear about missing content pretty quickly if the general public starts to lose pages from their favorite novels.
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Originally Posted by MathFox
(Post 10613284)
I wonder how a PDF reader would act when there's insufficient memory to load (or transform) a large bitmap image.
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