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IATA delay codes were created to standardise the reporting by airlines of commercial flight departure delays. Previously, every airline had its own system, which made the sharing and aggregation of flight delay information difficult. IATA standardised the flight delay reporting format by using codes that attribute cause and responsibility for the delay; this supports aviation administration and logistics and helps to define any penalties arising. These codes are used in movement messages sent electronically by SITA from the departure airport to the destination airport and also in the internal administration of the airlines, airports and ground handling agents. An aircraft held on the ground incurs costs, consequently airlines plan operations to minimise ground time. It is common practice for airlines and aircraft ground handling to have contracts based on a bonus-malus system, penalising the causative agent for delays caused. Delay code properties cover nine category sets for delay. Each category set can be described using either a two digit number code or a two letter alpha code; most airlines use the numeric format but some prefer the alpha. == Delay Codes starting with 0 (internal) == Delay codes starting with 0 are used for internal airline purposes. Airlines are free to define these codes and to determine particular application fields. However the following codes are standard, even if some airlines do not use them and create their own customized delay codes: * 00–05: These codes are left blank so that each airline may develop codes specifically to meet their own individual requirements, e.g., 03: "Three-class system" moving curtain. * 06 (OA): No gate/stand availability due to own airline activity * 07: Aircraft connection by maintenance * 08: Aircraft connection by miscellaneous, traffic, marketing flight operations, ground handling, cabin services, etc. * 09 (SG): Scheduled ground time less than declared minimum ground time 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「IATA delay codes」の詳細全文を読む スポンサード リンク
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