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AMM 73-21-50-000-029 Removal of the CJ13 Harness AMM 73-21-50-000-046 Removal of the HJ13 Harness AMM 73-21-50-210-002 Visual Inspection of the Wiring Harnesses AMM 73-21-50-400-029 Installation of the CJ13 Harness AMM 73-21-50-400-046 Installation of the HJ13 Harness AMM 73-21-60-000-001 Removal of the Electronic Control Unit (ECU)(4000KS) AMM 73-21-60-400-001 Installation of the Electronic Control Unit
(ECU)(4000KS) AMM 73-21-60-740-007 Correct Time Limited Faults (Non Asterisked) of the
Engine Scheduled Maintenance Report AMM 73-21-60-740-027 Read the Specific Data Report AMM 73-29-00-710-040 Operational Test of the FADEC on the ground (with
Engine Motoring) R AMM 75-21-10-000-002 Removal of the High Pressure Turbine Active Clearance R Control (HPTACC) Valve R AMM 75-21-10-200-002 Inspection/Check of the High Pressure Turbine Active R Clearance Control Valve (HPTACC) (4035KS) R AMM 75-21-10-400-002 Installation of the High Pressure Turbine Active R Clearance Control (HPTACC) Valve
AMM 75-31-00-210-002 Visual Inspection of the Variable Bleed Valve System AMM 75-32-10-210-002 Inspection of the Variable Stator Vane Actuator
3. Fault Confirmation
__________________
A. Test
(1) Read the DMU exceedence report and the Specific Data Report (Ref. AMM TASK 73-21-60-740-027) to note the max EGT value that was recorded during the event as well as the duration of the exceedence (if available).
- If none of these reports are available, get the data from the AIDS or the DFDR.
NOTE : There are many causes that can lead to an EGT overtemperature,
____ such as engine deterioration, engine stall, temperature inversion during take off, engine bleed selected during take off after throttle push, engine warm-up not sufficient before take off, FOD, dirty compressor airfoils, etc...
NOTE : Trend Monitoring should be reviewed first to determine whether
____ the EGT overlimit can be explained based on the level of deterioration of the engine or based on the contributing conditions explained in the above note. Also, a shift on Trend Monitoring only noted on EGT and not affecting N2 and VSV should definitively concentrate the troubleshooting on the EGT indication system.
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NOTE : The ECAM warning is triggered if the indicated EGT is greater
____
than 950 deg.C.
4. Fault Isolation
_______________
A. If the fault symptom is identified by the ECAM warning EGT OVER LIMIT, if the EGT overlimit is confirmed through the data contained in the Specific Data Report (Ref. AMM TASK 73-21-60-740-027) or AIDS data, or DFDR or QAR data and if there was no stall reported by the Crew or ECAM warning ENG1(2) STALL:
(1) Do the procedure after the engine has exceeded the operational limits (Ref. AMM TASK 72-00-00-200-008).
(a) If the engine is still operable, do the following:
1 If nothing is found but the EGT overlimit can be explained due
_ to a TAT inversion during take off or a warm-up before take off not sufficient:
- no additional maintenance is required.
2 If nothing is found but the EGT overlimit can be explained due
_
to engine deterioration:
- do a washing of the engine gas path with pure water (Ref. AMM TASK 72-00-00-100-026).
3 Do a check of the Post Flight Report (PFR), of the Scheduled
_ Maintenance Report (SMR) or Class 3 report (Ref. AMM TASK 73-21-60-740-007) and of the FADEC Last Leg Report for FMV, VBV, T495, T25, N2 SNSR, ECU, HMU, VSV, PS3, PRESS REG-V, HP BLEED-V failure messages.
a if failure message is present:
_
- do the related troubleshooting procedure.
b if nothing is found, continue the troubleshooting as
_
follows:
R 4_ Do an inspection check of the HPTACC valve for movement of the
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