{"id":5030,"date":"2025-02-01T21:03:32","date_gmt":"2025-02-01T13:03:32","guid":{"rendered":"https:\/\/caucanimax.com\/blog\/?p=5030"},"modified":"2025-02-01T21:03:32","modified_gmt":"2025-02-01T13:03:32","slug":"what-is-the-reason-of-descent-in-smoke-procedure","status":"publish","type":"post","link":"https:\/\/caucanimax.com\/blog\/what-is-the-reason-of-descent-in-smoke-procedure\/","title":{"rendered":"\u4e3a\u4ec0\u4e48\u70df\u96fe\u7a0b\u5e8f\u8981\u6c42\u4e0b\u9ad8\u5ea6\uff0c\u4e0d\u540c\u673a\u578b\u6709\u4ec0\u4e48\u4e0d\u540c\u8003\u8651\uff1f"},"content":{"rendered":"

\u5728\u7a7a\u5ba2\u7684\u70df\u96fe\u7a0b\u5e8f\u4e2d\uff0c\u6267\u884c\u5b8c\u7acb\u5373\u52a8\u4f5c\u90e8\u5206\u4e4b\u540e\uff0c\u5982\u679c\u70df\u6e90\u4e0d\u662f\u7acb\u5373\u53ef\u89c1\u3001\u53ef\u63a5\u8fd1\u3001\u53ef\u6251\u706d\u7684\uff0c\u4e14\u80fd\u591f\u88ab\u7acb\u5373\u9694\u79bb\uff0c\u5219\u9700\u8981\u5f00\u59cb\u5907\u964d\u548c\u4e0b\u964d\u81f3 FL100 \/ MEA-MORA\u3002<\/p>\n

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\u7a7a\u5ba2\u5728\u56de\u590d\u4e2d\u786e\u8ba4\u4e86 A320\/A330\/A340 \u786e\u5b9e\u6709\u5f00\u7a97\u7684\u8003\u8651\uff0c\u800c A350 \u7531\u4e8e\u901a\u98ce\u7cfb\u7edf\u8bbe\u8ba1\u4e0d\u4e00\u6837\uff0c\u6ca1\u6709\u5355\u72ec\u7684\u6392\u70df\u7a0b\u5e8f\uff08\u53c2\u8003 A350 \u70df\u96fe\u7a0b\u5e8f\u4ecb\u7ecd<\/a>\uff09\uff0c\u8003\u8651\u4e3b\u8981\u662f\u53e6\u5916\u7684\u56e0\u7d20\uff1a<\/p>\n

    \n
  1. \u5982\u679c\u540e\u7eed\u51fa\u73b0\u60c5\u51b5\u4e0d\u53ef\u63a7\uff0c\u9700\u8981\u7acb\u5373\u7740\u9646\uff0c\u90a3\u4e48\u4e00\u5f00\u59cb\u7684\u4e0b\u964d\u80fd\u591f\u8282\u7701\u65f6\u95f4\uff0c\u5927\u7ea6 15 \u5206\u949f\u3002<\/li>\n
  2. \u4fdd\u6301\u7a0b\u5e8f\u7edf\u4e00\uff0c\u5c24\u5176\u662f\u5bf9\u8de8\u673a\u578b\u7684\u98de\u884c\u5458\u3002<\/li>\n<\/ol>\n

    \u8fd9\u4e24\u4e2a\u7406\u7531\u6211\u89c9\u5f97\u8fd8\u662f\u53ef\u4ee5\u63a5\u53d7\u7684\u3002<\/p>\n

    <\/p>\n

    \u539f\u6587<\/strong><\/p>\n

    Q<\/strong><\/p>\n

    In SMOKE procedure for all Airbus aircrafts, after IMMEDIATELY ACTIONS, if smoke\/fumes source is not immediately obvious, accessible, extinguishable, and isolated, we need DIVERSION and DESCENT TO FL 100 \/ MEA-MORA.<\/p>\n

    What is the reason of DESCENT? Is there any different consideration between A320 and A350?<\/p>\n

     <\/p>\n

    A<\/strong><\/p>\n

    Airbus would like to indicate that the DESCENT TO FL 100 \/ MEA-MORA in the SMOKE procedure was initially introduced on A320\/A330\/A340 programs to prepare the cockpit windows opening<\/span>\u00a0performed during the [QRH] REMOVAL OF SMOKE \/ FUMES procedure.<\/p>\n

    As CSC knows, contrary to the other Airbus programs, there is no sliding windows <\/span>on the A350 and there is no [QRH] REMOVAL OF SMOKE \/ FUMES procedure.<\/p>\n

    In fact, the A350 ventilation system differs from the other Airbus aircraft and has been designed and certified to cope with smoke scenario with the need to quickly remove smoke.<\/p>\n

    On the A350, the SMOKE REMOVAL actions are addressed by the selection of the VENT AVNCS EXTRACT to OVRD position which is part of the immediate actions of the [QRH] SMOKE\/FUMES procedure and the SMOKE L(R) AVNCS SMOKE ECAM procedure.<\/p>\n

    However, as CSC mentions, although the cockpit windows cannot be opened on A350, the DESCENT TO FL 100 \/ MEA-MORA is still introduced in the A350 [QRH] SMOKE \/ FUMES procedure for the following reasons:<\/p>\n