As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
APU FAULT FAILED TO START(<P>TRANSFER TO MDDR 106611 IAW MEL 49-11-01A.</P><P>ACCOMPLISHED OPERATIONAL TEST OF THE APU. WHEN TRU BREAKER IS PULLED, APU STARTS NORMALLY. SUSPECT TRU MIGHT BE FAILING IAW B767 AMM 49-40-00 AND 49-61-00. REPLACED K615 APU START RELAY IAW SWPM 20-81-14 OPS CHECK GOOD. THIS CLEARS MDDR 106611</P>)