a330舱单重心与ecam不一致处置方法

1、海航飞行部HAINAN AIELINES CO.FLIGHT DEPT总飞行师技术通告/ CHIEF PILOT TECHNICAL ADVISORY编写/ EDITTED BY审核/ REVIEWED BY签发/ APPROVED BY温建平/ NTD NO.机型/AIRPLANE TYPE行文/ DRAFTING UNIT2012 002A330飞标训练中心/Flight Training and Standard Center签发日期/ IE DATE生效日期/ EFFECTIVE DATE预计截止日期/ESTIMATED ENDING DATE2012-2-162012-2-16标题/

2、SUBJECTA330 舱单重心与 ECAM 重心不一致处置方法Disal Method on A330 CG on Load Sheet and ECAM CG Disagree内容/CONTENTS全体 A330：舱单计算的重心与 ECAM 重心不一致主要由以下原因造成：1、飞机非标准燃油分布，特别是配平尾翼油箱非标准分布；2、舱单减滑行油后计算，而 ECAM 重心按实际油量计算；3、机组多加油后，舱单按放行油量计算而 ECAM 重心按实际油量计算。由于公司制作电子舱单的中航信系统不支持按逐个油箱输入油量计算重心，不一致产生后手工重新核算舱单需要时间较长，已有数个航班因此延误。工程部以及空

3、客公司计算原理，ECAM 重心更能体现飞机的实际油量与分布。几起延误事件中，人工核算的结果也证明这点。为保障飞行安全避免航班延误，当发生不一致时请机组按照飞行机组使用手册FCOM 3.03.07P1 章节的标准操作程序处理。附：FCOM 3.03.07P1 标准操作程序推出或起动前对比ECAM CG 检查舱单重心如果相差超过 2%，检查 MCDU 输入的无油重量和无油重心是否正确，然后，以 ECAM 重心为准。如果相差不到 2%，无需进一步动作，以 ECAM 重心为准。检查起飞重心在舱单重心限制之内（由于 ECAM 无法判断重心是否在范围内，故此步骤必不可少）。To all A330 pilo

4、ts:The reasons which causes load sheet calculated CG and ECAM CG disagree are as following:1. Aircraft fuel non-standard distribution, espenon-standard distribution;lly is trim tail2. The load sheet is calculated after minus taxiing fuel, but ECAM CG iscalculated according to the actual fuelty;3. Af

5、ter flight crew refueling more fuel, load sheet calculated according todispatch fuel, but ECAM CG is calculated according to actual fuelty.Because TravelSky system which company used to make electronic load sheetdoes not support the CG which is calculated the input fuelty according to thefuelone by

6、one, it takes long time to re-calculaoad sheet afterdisagreement. Several flights are delayed for this reason.Consulting the Engineering Department and Airbus calculation principle,ECAM CG can better reflect aircraft actual fuelty and contribution. Insome delay events, manual calculation cso prove i

7、t.In order to guarantee flight safety and avoid flight delay, flight crew shoulddise it according to the standard operation procedures in Chapt1 in FCOM3.03.07 when disagreemenppens.Appendix: FCOM 3.03.07 P1 Standard Operation Procedurebefore pushback or startupCompare ECAM CG and CG on load sheetIf the difference exceeds 2%, check if ZFW and zero fuel CGinput are correct or not, then, subjected to ECAM CG.CDUIf the difference is lessn 2%, there is no need for further action, subjected to ECAM CG.Check if the T/O CG ishe limiion of CG on load sheet or not(beca