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-   Accidents and Close Calls (https://www.pprune.org/accidents-close-calls-139/)
-   -   Too low over Leman lake on final GVA (https://www.pprune.org/accidents-close-calls/657422-too-low-over-leman-lake-final-gva.html)

island_airphoto 12th Feb 2024 11:46
Originally Posted by speed13ird (Post 11594549)
er, it's required equipment for dispatch and it's not fitted with an "off switch", it's what makes the EGPWS work, are you some sort of twit?
That is a joke. Hard to tell on the internet I guess.

Speed_Trim_Fail 12th Feb 2024 13:11
Originally Posted by aeromech3 (Post 11595463)
Low Range Radio Altimeter System (Not a radar altimeter) In my day 18 years ago with Classic B747 MMEL, Indicators Inop:- May be inoperative provided approach minimums or operating procedures do not require their use.
Receiver/Transmitter (R/T) Unit(s) May be inoperative provided:a) Dispatch deviation for GPWS inoperative is observed, b) Approach minimums or operating procedures do not require their use, and c) Operations are limited to not more than two flight days before repairs are made.
Of course some airports would not allow inop and I suspect GVA would not.
At last, someone posts the different between a radar altimeter and a radio altimeter! I was biting my tongue.

On the bus and indeed the venerable 737 the rad alt (particularly the No.1) have inputs into the AP/AT so there are other issues that have to be considered in the MEL beyond where you’re going. Dual rad alt failure on the 320 can be nasty.

megan 12th Feb 2024 20:31
At last, someone posts the different between a radar altimeter and a radio altimeter
And the difference is ..................?

markkal 16th Feb 2024 08:10
Arrival trajectory simulation on this clip

https://www.tdg.ch/reconstitution-en...h-597339809458

speed13ird 17th Feb 2024 19:42
Originally Posted by aeromech3 (Post 11595463)
Low Range Radio Altimeter System (Not a radar altimeter) In my day 18 years ago with Classic B747 MMEL, Indicators Inop:- May be inoperative provided approach minimums or operating procedures do not require their use.
Receiver/Transmitter (R/T) Unit(s) May be inoperative provided:a) Dispatch deviation for GPWS inoperative is observed, b) Approach minimums or operating procedures do not require their use, and c) Operations are limited to not more than two flight days before repairs are made.
Of course some airports would not allow inop and I suspect GVA would not.
good chap, you've just defined "required equipment"

TheGorrilla 3rd Mar 2024 12:58
Originally Posted by Equivocal (Post 11593585)
Do pilots not look out of the windows any more?
Don’t know what conditions they were in. It’s very easy to miss the GS blue FMA if you’re working like a one armed paper hanger because ATC have put you in a rubbish position.

Capn Bloggs 3rd Mar 2024 13:24
Originally Posted by TheGorilla
Under the circumstances that is about your only protection till the EGPWS pipes up.
No it's not, you set the Alt SEL to 1000 above airport and don't go below it until you've captured the GS. Or you could call "Stable" at 500ft AAL (if not 1000 doing an ILS)....


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