Effectivity: 916 i A / C24
Edition 0 / Rev. 1
BRP-Rotax Page 3-7
December 01 2023
Failure of both
Generators
A failure of both Generators (Generator 1/Generator 2) will re-
sult in engine stoppage unless the EMS is not powered by an
external power source (12 V voltage drop between X3 Terminal
1 and Aircraft ground).
916 i TYPE C24
Battery Backup Switch is activated engine is running – then
Warning lamp flashing, Caution lamp 28 V ON, 14 V OFF and
Caution Lamp Start/Backup Battery Switch ON.
Aircraft Manufacturer is responsible for defining a procedure for
this failure condition.
3.1.2) Failure of AC-DC Converter
916 i Type C24
Failure of the
Output 14 V
(EMS) side
If Caution lamp Output 14 V (EMS) is ON during normal opera-
tion (Generator 1 is supplying the EMS) – it indicates a problem
on the AC-DC converter 14 V (EMS) output side. As long as the
Caution lamp Output 28 V (AC) is not ON, the problem is re-
lated to the AC-DC converter output, not to Generator 2.
NOTE
The aux fuel pump is supplied from the Generator 2/AC-DC
converter side.
Failure of the
Output 28 V
(AC) side
If Caution lamp Output 28 V (AC) is ON during normal operation
>3000 rpm (Generator 1 is supplying the EMS) – it indicates no
power to the airframe on the AC-DC converter 28 V (AC) output
side. As long as the Caution lamp Output 28 V (AC) is not ON,
the problem is related to the AC-DC converter output, not to
Generator 2.
NOTICE
If Caution lamp 28 V (AC) is ON the airframe will not be supplied
with electrical power by the AC-DC converter 28 V output side.
As long as the Caution lamp Output 14 V (EMS) is not ON, the
problem is related to heat transfer (high temperature), over cur-
rent, over voltage on the 28 V output (AC) side.
NOTE
The aux fuel pump is supplied from the Generator 2/AC-DC
converter side.
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