As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) WHEN GROUND POWER WAS ATTACHED TO THE AIRCRAFT THE LT ENGINE BEGAN AN UNCOMMANDED START SEQUENCE. THE FAULT WAS TRACED TO THE LT STARTER RELAY CONTACTS LOCATED IN THE LT POWER DISTRIBUTION UNIT (PDU). THE PDU WAS REPLACED AND THE AIRCRAFT OPERATED NORMALLY. (TC NR 20061117007)