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Old 10th Feb 2013, 17:17
  #746 (permalink)  
RR_NDB
 
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Batteries cell voltages in JA829J and JA804A were recorded?

Hi,

Why NTSB, JTSB didnīt mention cell voltages?

The comments on "no overcharging" because 32 V limit was observed is almost irrelevant. Battery destruction could start due a cell failure. Itīs voltage shows it.

Question:

Considering FDR are designed to allow investigators fully understand WHAT and WHY, should FDR access inside black boxes like batteries (looking to ea. cell)?

FDR, specially in teething phase of a new airliner would "benefit" to record some information coming from important sensors? (raw data from AoA vanes, Pitotīs etc.)

New technologies are constantly being introduced in airliners. Current FDR approach to look "outside" of boxes is enough for allow a conclusive investigation?
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