What was found
APU FAILED TO START ON GROUND ( APU TRU DEACTIVATED )(<P>TRANSFERRED TO MDDR 156465 PER MEL 24-32-01B CAT D DUE DATE 08FEB22 MX ACTION C/W.</P> / <P> </P> / <P>REMOVED AND REPLACED APU START TRU IAW AMM 24-32-04. OPS CHECK GOOD. THIS CLEARS DMI, MCC NOTIFIED. PLACARDS REMOVED.</P> / <P> </P> / <P> </P>)