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1- APU fire / inlet overtemperature. 2- Overspeed / loss of overspeed protection. 3- APU controller failure. 4- Speed drop (rpm less than 88% and no acceleration for 10sec). 5- Hi EGT. 6- HI oil temp. 7- Low oil press. 8- Intake door failure. 9- No combustion on start. 10- No acceleration on start.
