Abstract of the NTSB Report on Air Canada flight 759's taxiway overflight at SFO [pdf]
CVR overwrite is bad news here. The crew knew this was a serious problem when it happened, there&#x27;s no way they should have allowed the CVR, crucial evidence of exactly what happened, to be overwritten.<p>Perhaps the full report will have more detail on this, as it stands I have to believe somebody made the decision to overwrite this because they thought it&#x27;d be better if it didn&#x27;t exist. Whether that&#x27;s the crew, their bosses or other staff, somebody managed to go from &quot;serious incident, preserve evidence&quot; to &quot;maximum ass covering&quot; and that person or persons are an obstacle to effective investigation and thus to safe air travel.