The CVR tape seemed odd -- nothing. The Bulk Erase feature had been activated. But which sort of fault led to such an activation of that mishap-CVR's Bulk Erase field over the magnetic tape? Most pilots couldn't tell you difference between the Power Change-over tone, versus the Bulk Erase field, on Lockheed A-100 Voice Recorder.
It certainly was quite the coincidence to have a rudder hardover(as claimed by petitioners) and a CVR bulk erase failure at almost exactly the same time on the same flight with a faulty slat retract mechanism.