(2) Do a check of the post flight report. If there is a L/G SYS DISAGREE ECAM message and related NLG downlock target-position CFDS message, do the Fault Isolation procedure.
4. Fault Isolation
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A. Procedure NOTE : The procedure that follows, gives the information necessary to
____
identify mechanical faults related to the NLG.
(1) Do the detailed inspection/check of the nose landing gear (Ref. AMM TASK 32-21-00-200-005).
(2) Do the inspection of the NLG proximity sensor and target clearances (Ref. AMM TASK 32-31-73-200-002)
(3) Do the general visual inspection of the NLG downlock springs (Ref. AMM TASK 32-21-00-200-001).
(4) Do the inspection/check of the clearance of the NLG hinge bearing (Ref. AMM TASK 32-21-00-200-004).
(5) Do the detailed visual inspection of the NLG uplocks and pins (Ref. AMM TASK 32-31-00-200-001).
(6) Correct any fault found.
(7) Do the functional test of the normal extension and retraction of the nose landing gear (Ref. AMM TASK 32-31-00-720-003).
(8) If the fault continues, the NLG is slow to operate or the fault continues after the subsequent flight, replace the ACTG CYL-NLG (2527GM) (Ref. AMM TASK 32-31-22-000-001) and (Ref. AMM TASK 32-31-22-400-001).
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞32-31-00∞∞∞∞∞∞∞∞∞∞Page A237
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CES
TASK 32-31-00-810-863
MLG (LH) Does Not Downlock
WARNING : MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON THE LANDING
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GEAR.
WARNING : PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU
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START A TASK ON OR NEAR:
- THE FLIGHT CONTROLS
- THE FLIGHT CONTROL SURFACES
- THE LANDING GEAR AND THE RELATED DOORS
- COMPONENTS THAT MOVE.
1. Possible Causes
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- MLG (LH) proximity sensor and target clearances
- MLG (LH) lockstay assembly
- MLG (LH) downlock springs
- ACTG CYL-MLG L (2503GM)
2. Job Set-up Information
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A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 32-11-00-200-001 Inspection/Check of the Main Gear AMM 32-11-00-220-003 Detailed Dimensional Check of the MLG Lockstay Assembly AMM 32-11-19-200-001 Visual Check of Main Landing Gear Downlocking Springs and Sidestay Center Joint Links and Cuffs AMM 32-31-00-200-001 Detailed Inspection of Gear Uplock and Door Uplock Units and Pins AMM 32-31-00-720-002 Functional Test of the Normal Extension and
Retraction of the Landing Gear AMM 32-31-46-000-001 Removal of the MLG Actuating Cylinder AMM 32-31-46-400-001 Installation of the MLG Actuating Cylinder AMM 32-31-73-200-001 Inspection of the MLG Proximity Sensor and Target
Clearances
AMM 32-33-00-720-001 Functional Check of Free-Fall Extension
3. Fault Confirmation
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A. Procedure
(1) If it was necessary to do a gravity extension of the landing gear (because of the MLG (LH) downlock fault, do the Aircraft Configuration procedure (Ref. AMM TASK 32-33-00-720-001).
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞32-31-00∞∞∞∞∞∞∞∞∞∞Page A238
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(2) Do a check of the post flight report. If there is a L/G SYS DISAGREE ECAM message and related MLG (LH) downlock CFDS message, do the Fault Isolation procedure.
4. Fault Isolation
_______________
A. Procedure NOTE : The procedure that follows, gives the information necessary to
____
identify mechanical faults related to the MLG (LH).
(1) Do the inspection/check of the main gear (LH) (Ref. AMM TASK 32-11-00-200-001).
(2) Do the inspection of the MLG (LH) proximity sensor and target clearances (Ref. AMM TASK 32-31-73-200-001).
(3) Do the detailed dimensional check of the MLG (LH) lockstay assembly (Ref. AMM TASK 32-11-00-220-003).
(4) Do the visual inspection of the MLG (LH) downlock springs (Ref. AMM TASK 32-11-19-200-001). 中國(guó)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(cè) 起落架 LANDING GEAR 1(54)
