BHT-430-MM-2
5-00-00
Page 140 Rev. 15 26 JAN 2007
NOTE
If FADEC faults are recorded and engine was
operated above 109.6% engine torque, OEI
overtorque has occurred. Refer to following step 2.
c. If the ECU did not record any FADEC faults, indicating a
properly functioning ECU, and provided the 2 minutes and/or
the 30 seconds limits are not exceeded, no maintenance is
required on the helicopter drivetrain system. Clear OEI
maintenance advisory light using MT35 program.
Rolls-Royce
250-C40B Operation
and Maintenance
Manual, Publication
CSP 21000
d. Perform engine overtorque inspection as required.
BHT-430-FM-1
NOTE
An OEI overtorque is an incident where engine
torque is greater than the allowed limits as follows:
Operation at 98% to 105.3% engine torque for period
greater than 2 minutes continuous.
Operation at or above 105.3% engine torque for
period greater than 30 seconds continuous.
Operation above 109.6% engine torque with FADEC
in Manual MODE, Degraded MODE or Failed Fixed
MODE.
Operation above 109.6% for period longer than 16
seconds.
2. When an OEI overtorque occurs, do the steps that follow:
Chapter 95 a. Verify the maintenance pages of both IIDS screens for
any exceedances. Review ECU engine faults, engine
exceedances and engine history data pages.
CONDITIONAL INSPECTIONS
5-49. ONE ENGINE INOPERATIVE (OEI) (CONT)
DATA REFERENCE INSPECTION TASK DESCRIPTION
INITIAL
MECH OTHER
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