Bondu,
Bell built in a data recorder into each of the displays on the 429. As long as all displays do not burn (unlikely on a Bell) the data is recoverable. The data mapped is equivalent to ED-112 type recorders used on the big boys, except at a slower rate of one sample every 1/2 second. The 429 also has a fully compliant ED-112 data bus with data up to 8 times a second which feeds an optional modern CV/FDR.