Something I heard the other day.
The battery vent indicator burst-disc keeps blowing off in flight. The fix is to place the disc at the other end of the vent tube. IE. at the battery containment box.
It is a weekly check item to ensure this disc is intact.
The only way to check it is to remove the 52 bolts from the lid and do an internal inspection.
Takes about 3 hours apparently.
This may well be a load of BS as I haven't had it confirmed yet.
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