tso altimeter

jcarlyle wrote:
This descriptor (TS 10.220/xx) is only used in DG and Stemme
flight manuals, as far as I can tell.

No. It's a LBA (the German FOCA) thing. I have no idea whether and how
this has changed with EASA.

In the mean time, I've learnt that the correct English name of the paper
is "Type Certificate Data Sheet (TCDS)", and the number is called
"Approval Number". If the device ist TSOed, then that TSO should be
found on that sheet.

I think something is getting lost in translation.

I've never heard of a TCDS being used for anything other than
aircraft, and I cannot find a TCDS on the web that doesn't apply to an
aircraft (except in the LS8 manual I cited above). Also, a TSO doesn't
apply to an aircraft, just instruments. Lastly, the Approval Number
format we're dealing with here, 10.220/xx, doesn't fit the format of
the numbers used for European TDCS for aircraft found in Europe. For
example, the LS8 had a TCDS under the LBA of 402, under EASA it is now
A.047.

Something doesn't make sense.

-John

On Dec 7, 6:43 pm, John Smith wrote:
No. It's a LBA (the German FOCA) thing. I have no idea whether and how
this has changed with EASA.

In the mean time, I've learnt that the correct English name of the paper
is "Type Certificate Data Sheet (TCDS)", and the number is called
"Approval Number". If the device ist TSOed, then that TSO should be
found on that sheet.

A little progress. First, John Smith is correct - the designator TS
10.220/xx is indeed an LBA thing, and it appears to still be in use.
Here's a list of the categories:
http://www2.lba.de/dokumente/zuger/r...tand%20neu.pdf

Category 4 is for Sailplanes, which is he http://www2.lba.de/dokumente/zuger/04-segel.pdf
Note the September 2010 issue date. Note also the form of the number
in the first column, this really is a TCDS number.

Category 12 is for Flight and Navigation Instruments, which is he
http://www2.lba.de/dokumente/zuger/12-1-navgeraete.pdf
Note the form of the number in the first column, it appears to me to
not be a TCDS but rather a TS number. Technical Specification, maybe?
Unfortunately, the 10.220/48 designator for the Winter altimeter in
question isn't in this list - don't know why.

I picked another number, 10.220/40, for a United altimeter which I
know is in production, but I had no luck in finding the text for this
TS document on the Web. So at this time its still unclear if the a LBA
TS will link back to a TSO.

-John

jcarlyle wrote:
I picked another number, 10.220/40, for a United altimeter which I
know is in production, but I had no luck in finding the text for this
TS document on the Web. So at this time its still unclear if the a LBA
TS will link back to a TSO.

I tried this a couple of years ago with a turn indicator. (Actually,
that's why I know about it.) When I asked, the LBA said that those
sheets are not on the web, and they sent me a PDF.