As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ETOPS SIGNIFICANT SYSTEM - BRAKE RIDER REPORTS APU WON’T START. REMOVED AND REPLACED IGNITER PLUGS. NO HELP PER AMM 49-41-41. TROUBLESHOT PER TSM 49-41-00-810-804-A 'APU AUTO SHUT DOWN NO FLAME IGNITION EXCITER FAULT'. REMOVED AND REPLACED APU EXCITER BOX PER AMM 49-41-38. APU OPS CHECK NORMAL. A/C OK FOR SERVICE.