C. Warnings In addition to the AIR DATA flags displayed on the PFDs and NDs and on the CDU, warning messages are displayed on the lower part of the upper ECAM DU. Two kinds of warning messages can be displayed:
-failure warning messages in case of loss of AIR DATA parameters
-configuration warning messages in case of dangerous configuration of
the aircraft. When the CLR key is pushed on the ECAM control panel, a STATUS page is displayed on the lower ECAM DU and indicates the STATUS and INOP SYS (systems).
(1)
Failure warning messages
(Ref. Fig. 016, 017, 018)
(a)
NAV ADR 1(2)(3) FAULT
NAV ADR 1(2) + 2(3) FAULT
When these messages are displayed:
-
the MASTER CAUT lights on the glareshield come on
-
the Single Chime (SC) sounds
-
the FAULT legend of the ADR pushbutton switch on the CDU comes on.
(b)
NAV ALTI DISCREPANCY (Ref. Fig. 019) This message is displayed when a difference higher than plus or minus 250 ft is detected by the external comparison inside the FWCs between the baro-corrected altitude (or plus or minus 500 ft for the standard altitude) provided by two ADRs. When it is displayed:
-
the MASTER CAUT lights on the glareshield come on
-
the Single Chime (SC) sounds
-
the CHECK ALT message appears on the PFD.
(2)
Configuration warning messages
(Ref. Fig. 020)
R **ON A/C 051-099, 106-149, 204-299, 401-499,
(Ref. Fig. 021)
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NAV ADR 1(2)(3) FAULT Message
Figure 016
1EFF : 051-099, 106-149, 204-299, 301-399, 1 34-13-00Page 65 1401-499, 1Config-3 Aug 01/05 1 1 1CES 1
NAV ADR 1+3 (2+3) FAULT Message
Figure 017
1EFF : 051-099, 106-149, 204-299, 301-399, 1 34-13-00Page 66 1401-499, 1Config-3 Aug 01/05 1 1 1CES 1
NAV ADR 1 + 2 FAULT Message
Figure 018
1EFF : 051-099, 106-149, 204-299, 301-399, 1 34-13-00Page 67 1401-499, 1Config-3 Aug 01/05 1 1 1CES 1
NAV ALTI DISCREPANCY Message
Figure 019
1EFF : 051-099, 106-149, 204-299, 301-399, 1 34-13-00Page 68 1401-499, 1Config-3 Aug 01/05 1 1 1CES 1
OVERSPEED VMO/MMO Message
Figure 020
1EFF : 051-099, 106-149, 204-299, 301-399, 1 34-13-00Page 69 1401-499, 1Config-3 Aug 01/05 1 1 1CES 1
OVERSPEED VFE/VLE Message
Figure 021
1EFF : 051-099, 106-149, 204-299, 401-499, 1 34-13-00Page 70 1 1 Config-3 Aug 01/05 1 1 1CES 1 **ON A/C 301-399,
(Ref. Fig. 021A)
R **ON A/C 051-099, 106-149, 204-299, 301-399, 401-499,
(a)
OVERSPEED VM0/MM0
OVERSPEED VFE/VLE
When these messages are displayed:
-
the MASTER WARN lights on the glareshield flash
-
the Continuous Repetitive Chime (CRC) sounds.
OVERSPEED VMO/MMO warning processed by the FWC is triggered when
the CAS/Mach calculated by the ADR exceed the VMO/MMO threshold
by more than 4 kts/0.006 Mach.
OVERSPEED VFE/VLE processed by the FWC is a function of Vc and
depends on slat/flap position for the VFE and landing gear
position for the VLE.
For overspeed VLE, the warning is triggered at 284 knots.
(b)
Stall warning
(Ref. Fig. 022)
When this warning is activated:
-
the MASTER WARN lights on the glareshield flash
-
the cricket and the voice STALL sound.
This warning is processed by the FWC and is a function of angle
of attack value and slat position following three conditions:
-normal law: if corrected angle of attack exceeds 23. or if corrected angle of attack exceeds 15. and slat < 15..
-alternate law if corrected angle of attack exceeds 13. or if corrected angle of attack exceeds 8. and slat < 15..
1EFF : 051-099, 106-149, 204-299, 301-399, 1 34-13-00Page 71 1401-499, 1Config-3 Aug 01/05 1 1 1CES 1
OVERSPEED VFE/VLE Message
Figure 021A
1EFF : 301-399, 1 34-13-00Page 72 1 1 Config-3 Aug 01/05 1 1 1CES 1
Stall Warning Message
Figure 022
1EFF : 051-099, 106-149, 204-299, 301-399, 1 34-13-00Page 73 1401-499, 1Config-3 Aug 01/05 1 1 1CES 1 AIR DATA - REMOVAL/INSTALLATION 中国航空网 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1(147)
