The NTSB issued a rare urgent safety recommendation on Tuesday, warning pilots that Piper PA-31T-series aircraft may have unsafe wiring that could lead to arcing and cause fires. The urgent safety recommendation is based upon preliminary findings in the ongoing investigation of the July 29, 2016, in-flight breakup of a Piper PA-31T medical transport flight in California.
Source: avwebNTSB Warns Of Possible Fires From Piper PA-31T Wiring