WARNING MESSAGES (RED)
EDU message Fault condition Corrective action
ROTOR LOW Rotor RPM low.
Rotor RPM between
80% and 95.5% (power
on) or 80% and 89.5%
(power off).
Use collective to adjust
RPM.
ROTOR HIGH Rotor RPM high.
Rotor RPM above or
equal to 105.5% (power
on) or 110.5% (power
off).
Use collective to adjust
RPM.
ENG 1 (2) OUT N1 abnormally low, be-
low 35%, on engine 1
(2).
Probable engine failure.
Lower collective and
adjust rotor RPM.
Shut down affected en-
gine; proceed to a suit-
able landing site and
land. (See the pertinent
paragraphs of this Sec-
tion).
ENG 1 (2) OUT (*)
On ground
Engine #1(2) in IDLE
during take-off or prob-
able engine failure.
Lower collective to
MPOG.
If EDU and aural message
disappear, on affected en-
gine set ENG MODE
switch to FLT position
and carry out normal
TAKE-OFF procedure.
If EDU and aural mes-
sages persist, carry out
normal SHUTDOWN
procedure.
(*) Only helicopters equipped with installation P/N 109-0012-11.
RFM A109E
E.A.S.A. Approved 3-7
Rev. 49
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