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(c) GPS/FMS position disagreement When GPS Primary is active and either FMGC 1 or FMGC 2 latitude (longitude) deviates from either MMR 1 or MMR 2 latitude (longitude) by more than 0.5 Nm, the NAV FMS/GPS POS DISAGREE and A/C POS...........CHECK messages are displayed in amber and cyan respectively on the ECAM DU. These messages are accompanied by:
-activation of the MASTER CAUT lights on the glareshield -aural warning: Single Chime (SC). 1EFF : ALL 1 34-36-00Page 42 1 1 Config-2 May 01/05R 1 1 1CES 1
8. BITE Function_____________ R **ON A/C 051-099, R A. CFDIU Interface R (1) BITE description R The BITE facilitates maintenance on in-service aircraft. It detects R and identifies a failure related to the MMR. The BITE of the MMR is R connected to the CFDIU. R The BITE: R - transmits permanently MMR status and its identification message to R the CFDIU, R - memorizes the failures which occurred during the last 63 flight R legs, R - monitors data inputs from the various peripherals, R - transmits to the CFDIU the result of the tests performed and R self-tests, R - can communicate with the CFDIU through the menus. R The BITE can operate in two modes: R - the normal mode, R - the menu mode. R (a) Normal mode R During the normal mode, the BITE cyclically monitors the status R of the MMR. It transmits its information to the CFDIU during the R concerned flight. R In case of fault detection, the BITE stores the information in R the fault memories. R These items of information are transmitted to the CFDIU by an R ARINC 429 message with label 356. R (b) Menu mode R The menu mode can only be activated on ground. R This mode enables communication between the CFDIU and the MMR R BITE by means of the MCDU. R (Ref. Fig. 016) R When you get access to the SYSTEM REPORT/TEST/NAV page, the ILS1 R and ILS2 indications can be shown instead of the MMR1 and MMR2 R indications. In this case, you must do the following steps: R - make sure that the the engines are shut down R - open CFDIU SUPPLY circuit breaker 2TW R - open CFDIU BACK UP circuit breaker 8TW R - make sure that MMR1 and MMR2 circuit breakers, 42RT1 and 42RT2, R are closed
1EFF : ALL 1 34-36-00Page 43 1 1 Config-2 May 01/05 1 1 1CES 1
MMR - Maintenance Test Procedure Figure 016
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R - wait for 30 seconds then close the CFDIU circuit breakers 2TW R and 8TW R - wait for 180 seconds then get access to the SYSTEM R REPORT/TEST/NAV page. R All the information displayed on the MCDU during the BITE Test R configuration can be printed by the printer (Ref. 31-35-00). R The MMR menu mode is composed of: R - LAST LEG REPORT R (Ref. Fig. 017) R This menu contains the fault messages (class 1 internal and R external) detected during the last flight. R - PREVIOUS LEGS REPORT R (Ref. Fig. 018) R This report contains the fault messages related to the external R or internal failures (class 1) recorded during the previous 63 R flight legs. R - LRU IDENTIFICATION R (Ref. Fig. 019) R Allows to display the P/N, the serial number and the software R number of the equipment. R - GND SCANNING R (Ref. Fig. 020) R Based on the monitoring and fault analysis during flight, R provides information of the failures detected while using this R function. R - TROUBLE SHOOTING DATA R (Ref. Fig. 021) R Provides correlation parameters and snapshot data concerning R the failure displayed in the LAST LEG REPORT and PREVIOUS LEGS R REPORT. R - CLASS 3 FAULTS R (Ref. Fig. 022) R Allows to display the class 3 faults recorded during the last www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：A320飞机维护手册 AMM NAVIGATION 导航3
