63
SAFIR 5L
OPERATION AND ATTENDANCE MANUAL
PG 01-31
The engine do not achieve 49% RPM during the time
of 45 sec. since the beginning of start
Check feeding voltage
The APU cranks the engine
above 19% speed
YES NO
Engine failure
Piping between APU and ATS isnt tight
Check APU rotor speed
Remove untightness
≤
95%
~
100%
Replace EC
Voltage of board electric
network is correct
NOT TIGHT
<133mA
YES
NO
TIGHT
Valves of ASBV are not tight
Replace ASBV
>133mA
Defective ATS or
engine failure
Check current at Servovalve
Check fuel delivery systems as FP,
BFS, APU draining and
blades of compresor and turbine APU