A320 and D-FDRs
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Join Date: Jun 2013
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A320 and D-FDRs
With apologies to all, this series of questions was posed in R&N section, before it occurred to me that it belongs here. Obviously, I'm dealing with the Germanwings 'event' of two days ago. If I may, please remember that I do not do Airbus and I know only the basics of their airplanes' digital control and digital recording systems. Please note the next-to-last item, asking about the current FDR on a 'slightly mature' airplane. Do the European authorities have regulations about updating/upgrading FDR capabilities on older airplanes? I do not know - or even where to ask.
I don't do Airbus and I know nearly nothing about its systems beyond the idea that it generates tons of data and that a Digital FDR can capture up to 1300 discrete measures. A good FDR will obviously capture important flight deck actions such as side stick movements, button pushes and the like. What I'd like to know:
1. Does the A320's D-FDR record door lock and door control actions?
2. If the D-FDR's recording media (a chip?) is not present, does this generate any kind of flight deck alarm or ECAS event?
3. Is a defective/alarmed/INOP D-FDR a MEL-able item; if so, for how long?
4. I'm just asking, NOT suggesting- how long would it take an experienced individual to reach the D-FDR and if possible, can the recording media be removed without generating ECAS alarms.
If, I repeat - IF the D-FDR was INOP and so recognized by the crew prior departure, I wonder if any discussion of same was captured by the CVR.
Lastly, the accident A320 was an older edition airframe and may have been equipped with an earlier generation, less capable FDR. Does anyone know - for certain, what was flying on this airplane?
I refuse to speculate, but will ask questions. Accurate answers to these questions are necessary before I can hope to understand WTF happened on Tuesday. For all lost, including the FO, RIP. -NFZ
I don't do Airbus and I know nearly nothing about its systems beyond the idea that it generates tons of data and that a Digital FDR can capture up to 1300 discrete measures. A good FDR will obviously capture important flight deck actions such as side stick movements, button pushes and the like. What I'd like to know:
1. Does the A320's D-FDR record door lock and door control actions?
2. If the D-FDR's recording media (a chip?) is not present, does this generate any kind of flight deck alarm or ECAS event?
3. Is a defective/alarmed/INOP D-FDR a MEL-able item; if so, for how long?
4. I'm just asking, NOT suggesting- how long would it take an experienced individual to reach the D-FDR and if possible, can the recording media be removed without generating ECAS alarms.
If, I repeat - IF the D-FDR was INOP and so recognized by the crew prior departure, I wonder if any discussion of same was captured by the CVR.
Lastly, the accident A320 was an older edition airframe and may have been equipped with an earlier generation, less capable FDR. Does anyone know - for certain, what was flying on this airplane?
I refuse to speculate, but will ask questions. Accurate answers to these questions are necessary before I can hope to understand WTF happened on Tuesday. For all lost, including the FO, RIP. -NFZ
PPRuNe Handmaiden
I'm not Airbus either but my husband is, apparently there is no warning in the FD that it isn't working. There should be a note in the Tech Log, I can't remember how long it's MELable without looking it up. 3 or 10 days?
You can't access it normally during a walk around.
It is possible that the QAR would be able to pick up more data than an older FDR.
I am sure an Airbus pilot will be along soon to answer your q's.
You can't access it normally during a walk around.
It is possible that the QAR would be able to pick up more data than an older FDR.
I am sure an Airbus pilot will be along soon to answer your q's.
