- VBV ACT, HMU
- T495 SNSR, J13, ECU
- CHECK HOT AIR LEAKS ENG1
- HPTCC VLV (POS), HMU
- BSV, HMU
(2) Do a visual inspection of all the VBV doors actuators and flexible shafts through the fan duct panels. Check for offset of position between all VBV doors (Ref. AMM TASK 75-31-00-210-002).
(3) If an EGT fluctuation/loss has been reported by the crew, do trouble shooting for the EGT indication (Ref. TASK 77-00-00-810-854) and (Ref. TASK 77-20-00-810-830).
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(4) Check if the Engine Serial Number (ESN) of the engine was entered through the LRU IDENTIFICATION menu of the MCDU before the flight.
- if yes, no further action is required.
(5) Do an inspection of the engine for Foreign Object Damage (FOD or bird strike) (Ref. AMM TASK 72-00-00-200-006).
(6) Check if an EGT deterioration greater than 62 deg. C (using EGT value recorded in the take off report) is consistant with the EGT trend monitoring data (GEM or ADEPT):
- if no, do trouble shooting of the EGT system (Ref. TASK 77-00-00-810-849)
- if yes, the engine must be replaced within five (5) cycles (Ref. AMM TASK 71-00-00-000-042) and (Ref. AMM TASK 71-00-00-400-042).
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TASK 72-00-00-810-810
EGT at or above the HPC Operating Line Limit on Engine 2
1. Possible Causes
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- engine
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
77-00-00-810-849 EGT Overlimit on Engine 1 or 2 77-00-00-810-854 Loss of the EGT Indication on Engine 1 or 2 77-20-00-810-831 The EGT indication fluctuates while other parameters
are stable AMM 71-00-00-000-042 Removal of the Power Plant AMM 71-00-00-400-042 Installation of the Power Plant AMM 72-00-00-200-006 Inspection/Check of Foreign Objet Damage (FOD) (Bird
Strike Included) AMM 75-31-00-210-002 Visual Inspection of the Variable Bleed Valve System
3. Fault Confirmation
__________________
A. Get the engine take off EGT data, with the use of the MCDU or DAR/QAR data. Check for previous history logged on this engine of CFDS message "HPC (OPERT.LINE)".
4. Fault Isolation
_______________
A. Do this trouble shooting if the SB CFMI 72-182 has not been incorporated. If POST SB CFMI 72-182, fault message must be ignored.
(1) Check for the presence of the following CFDS messages in the Post Flight Report (PFR) and do trouble shooting as required.
- VBV ACT, HMU
- T495 SNSR, J13, ECU
- CHECK HOT AIR LEAKS ENG2
- HPTCC VLV (POS), HMU
- BSV, HMU
(2) Do a visual inspection of all the VBV doors actuators and flexible shafts through the fan duct panels. Check for offset of position between all VBV doors (Ref. AMM TASK 75-31-00-210-002).
(3) If an EGT fluctuation/loss has been reported by the crew, do trouble shooting for the EGT indication (Ref. TASK 77-00-00-810-854) and (Ref. TASK 77-20-00-810-831).
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(4) Check if the Engine Serial Number (ESN) of the engine was entered through the LRU IDENTIFICATION menu of the MCDU before the flight. 中國航空網(wǎng) www.k6050.com 航空翻譯 www.aviation.cn 本文鏈接地址：A320 Trouble Shooting Manual 排故手冊 發(fā)動機 ENGINE(10)
