EDU message Fault condition Corrective action
#1(#2)TOT
LIMITER
TOT limiter function
of Engine Control
Unit not operative
and failure in thermo-
couples system.
Engine temperature
matching inopera-
tive.
Possible loss of TOT
reading.
Verify that LD-SH switch
is set to TORQUE.
If TOT reading is still
present, proceed with
flight paying attention
not to exceed TOT limits.
If TOT reading is miss-
ing, proceed with flight
paying attention not to
exceed 92% N1 and
10000 ft pressure alti-
tude. Avoid as far as pos-
sible to bleed air from the
engine (i.e. for heater,
ECS, and EAPS).
Correct trouble before
next flight.
TRQ LIMITER
Torque limiter function
of Engine Control Unit
not operative or no
communication be-
tween Engine Control
Units.
Engine torque match-
ing inoperative.
Proceed with flight pay-
ing attention not to ex-
ceed torque limits.
Verify that LD-SH switch
is set to TOT.
Correct trouble before
next flight.
RPM SELECT RPM switch inop-
erative.
Proceed with flight pay-
ing attention that RPM
value will remain fixed at
the value selected before
failure.
(See paragraph ″RPM
SWITCH MALFUNC-
TION″).
RFM A109E
R.A.I. Approved 3-17
Rev. 11
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