- RELAY-HYDRAULIC CONTROL (48GA)
- RESISTOR (56GA)
- CAPACITOR (57GA)
- Diode (1VD)
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 32-33-00-720-001 Functional Check of Free-Fall Extension
ASM 32-31/05
ASM 32-31/07
3. Fault Confirmation
__________________
A. Test
(1) Examine the ECAM for an LGCIU 1 fault warning.
4. Fault Isolation
_______________
A. Procedure
(1) If there is an LGCIU 1 fault warning:
(a) Replace the RELAY-GND SERVICE BUS CHG OVER (53GA), (Ref. ASM 32-31/05).
(b) Do the L/G safety valve power interrupt test (Ref. AMM TASK 32-33-00-720-001).
(2) If there is no LGCIU 1 fault warning:
(a) Do a check of the L/G safety valve power interrupt circuit, (Ref. ASM 32-31/07), including the components that follow:
- RELAY-HYDRAULIC CONTROL (48GA)
- RESISTOR (56GA)
- CAPACITOR (57GA)
- Diode (1VD).
(b) Repair/correct any defects found.
「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 A213
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(c) Do the L/G safety valve power interrupt test (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 A214
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TASK 32-31-00-810-850
L/G Fault Code H138 or H146 is Shown in LGCIU Trouble Shooting Data
1. Possible Causes_______________
- LGCIU-1 (5GA1)
- LGCIU-2 (5GA2)
2. Job Set-up Information______________________
A. Referenced Information
-------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
AMM 31-32-00-860-009 Procedure to Get Access to the SYSTEM REPORT/TEST/L/G Page
AMM 32-31-71-000-001 Removal of the LGCIU (5GA1, 5GA2)
AMM 32-31-71-400-001 Installation of the LGCIU (5GA1, 5GA2)
AMM 32-69-00-740-001 BITE Check Landing Gear Control Interface Unit (LGCIU) using MCDU to Ensure that Continuous BITE is Operative
3. Fault Confirmation__________________
A. Trouble Shooting Data
(1) At the MCDU, get access to the SYSTEM REPORT/TEST/ L/G page (Ref. AMM TASK 31-32-00-860-009).
(a) Push the TROUBLE SHOOTING DATA line key and go to the NEXT PAGE:
- if the FAULT code H138 or H146 is shown for the first time, do the fault isolation procedure in Para. 4.A.(1)
- if the FAULT code H138 or H146 is shown and was also recorded after the previous flight, do the fault isolation procedure in Para. 4.A.(4).
NOTE : Fault codes H138 and H146 can be caused by a temporary
____ timing error in the LGCIU. Because these timing errors can be intermittent, it is recommended that a record is kept of the Post Flight Report, the Trouble Shooting Data and the Serial Number. This record can then be attached to the LGCIU to help identify the fault.
「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 A215
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4. Fault Isolation
_______________
A. Procedure
(1) If this is the first time the fault code has been shown, do a BITE TEST of the LGCIU shown on the PFR (Ref. AMM TASK 32-69-00-740-001):
- if the test is not OK, do the trouble shooting procedure related to the maintenance message.
- if the test is OK, do the next step.
(2) Make a record of the serial number of the LGCIU that gives the fault code.
(a) If the LGCIU that gives the fault code is in the LGCIU-1 position, interchange it with LGCIU-2, (Ref. AMM TASK 32-31-71-000-001) and (Ref. AMM TASK 32-31-71-400-001).
(b) If the LGCIU that gives the fault code is in the LGCIU-2 position, keep it in System 2. 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：A320 Trouble Shooting Manual 排故手册 起落架 LANDING GEAR 1(45)
