SUPPLEMENTARY INFORMATION
ZFW - ZFCG ENTRY ERRORSZFW - ZFCG ENTRY ERRORS
A318/A319/A320/A321
FLIGHT CREW TRAINING MANUAL
Note: 1. In flight, if the FM and FAC GW differ from a given threshold, a "CHECK GW" message is triggered on the MCDU.
2. Valpha prot, Valpha max, Vsw are not affected since based on aerodynamic data.
ERRONEOUS FUEL ON BOARD ENTRY
As long as the engines are not started, the FM GW is erroneous and above-mentioned consequences apply. Once the engines are started, the fuel figures are updated and downstream data update accordingly.
It should be noted however, that the FOB on ECAM is correct since it is provided from FQI data.
OPERATIONAL RECOMMENDATIONS
Applicable to: ALL
ZFW entries should be cross-checked by both crew members to avoid entry error.
If the "CHECK GW" amber warning is displayed on the MCDU, a significant discrepancy exists between the FM computed GW and the FAC computed GW.
The crew will compare the Load and Trim Sheet (LTS) figures with the FM GW and fuel used:
? If an obvious entry error is detected, FM GW will be updated on the MCDU FUEL PRED page.
? If FM and LTS GW are in accordance and appear to be correct, the FAC computed GW should be suspected. (AOA sensor problem). Consequently, characteristic speeds on PFD are erroneous and should be disregarded. Characteristic speeds should be extracted from QRH.
? If FM and LTS GW are in accordance but LTS GW is suspected, FAC and QRH characteristic
speeds should be compared (to validate FAC outputs) and the most appropriate applied.
SUPPLEMENTARY INFORMATION
ZFW - ZFCG ENTRY ERRORSZFW - ZFCG ENTRY ERRORS
A318/A319/A320/A321
FLIGHT CREW TRAINING MANUAL
Intentionally left blank
SUPPLEMENTARY INFORMATION
TCAS
A318/A319/A320/A321
FLIGHT CREW TRAINING MANUAL
TECHNICAL BACKGROUND 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址:A318/A319/A320/A321 机组训练手册 FCTM Flight Crew Training Manual(178)