The actual discovery of the wiring problem is pretty interesting. It starts on page 17 of the Engineering Factual Report[1], which is one of many released[2].
The wire in question was carrying unknown current (likely 20-50 mA), but 110 volts DC signaling.
Comparing the photos on page 22 (Dali) and 25 (Cezanne), you can clearly see the blue ferrules in the correctly wired panel on the Cezanne.
The wire in question was carrying unknown current (likely 20-50 mA), but 110 volts DC signaling.
Comparing the photos on page 22 (Dali) and 25 (Cezanne), you can clearly see the blue ferrules in the correctly wired panel on the Cezanne.
[1] https://data.ntsb.gov/Docket/Document/docBLOB?ID=19228257&Fi...
[2] https://data.ntsb.gov/Docket/?NTSBNumber=DCA24MM031