What was found
VERIFICATION FLIGHT FOR APU COMPLETED UNSATISFACTORILY, NO LIGHT OFF. PERFORMED TSM 49-62-00-810-838-A, REMOVED AND REPLACED THE FUEL CONTROL UNIT IAW AMM 49-32-51-000-801-A, AND 49-32-51-400-801-A, OPS AND LEAK CHECKED GOOD, APU BITE TEST ACCOMPLISHED, NO FURTHER DEFECTS NOTED.