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11.4.2.2.3 DELAY (DLA) MESSAGES 11.4.2.2.3.1 A DLA message shall be transmitted when the departure of an aircraft, for which basic flight plan data (FPL or RPL) has been sent, is delayed by more than 30 minutes after the estimated off-block time contained in the basic flight plan data. 11.4.2.2.3.2 The DLA message shall be transmitted by the air traffic services unit serving the departure aerodrome to all recipients of basic flight plan data. Note.— See 11.4.2.3.4 concerning notification of a delayed departure of an aircraft for which a CPL message has been transmitted. 11.4.2.2.4 MODIFICATION (CHG) MESSAGES A CHG message shall be transmitted when any change is to be made to basic flight plan data contained in previously transmitted FPL or RPL data. The CHG message shall be sent to those recipients of basic flight plan data which are affected by the change. Note.— See 11.4.2.3.4 concerning notification of a change to coordination data contained in a previously transmitted current flight plan or estimate message. 11.4.2.2.5 FLIGHT PLAN CANCELLATION (CNL) MESSAGES A flight plan cancellation (CNL) message shall be transmitted when a flight, for which basic flight plan data has been previously distributed, has been cancelled. The ATS unit serving the departure aerodrome shall transmit the CNL message to ATS units which have received basic flight plan data. 11.4.2.2.6 DEPARTURE (DEP) MESSAGES 11.4.2.2.6.1 Unless otherwise prescribed on the basis of regional air navigation agreements, a DEP message shall be transmitted immediately after the departure of an aircraft for which basic flight plan data have been previously distributed. 11.4.2.2.6.2 The DEP message shall be transmitted by the ATS unit serving the departure aerodrome to all recipients of basic flight plan data. Note.— See 11.4.2.3.4 concerning notification of the departure of an aircraft for which a CPL message has been transmitted. 11.4.2.2.7 ARRIVAL (ARR) MESSAGES 11.4.2.2.7.1 When an arrival report is received by the ATS unit serving the arrival aerodrome, this unit shall transmit an ARR message: a) for a landing at the destination aerodrome: 1) to the ACC or flight information centre in whose area the arrival aerodrome is located, if required by that unit; and 2) to the air traffic services unit, at the departure aerodrome, which originated the flight plan message, if that message included a request for an ARR message; b) for a landing at an alternate or other aerodrome: 1) to the ACC or flight information centre in whose area the arrival aerodrome is located; and 2) to the aerodrome control tower at the destination aerodrome; and 3) to the air traffic services reporting office at the departure aerodrome; and 4) to the ACC or flight information centre in charge of each FIR or upper FIR through which the aircraft would have passed according to the flight plan, had it not diverted. 11.4.2.2.7.2 When a controlled flight which has experienced failure of two-way communication has landed, the aerodrome control tower at the arrival aerodrome shall transmit an ARR message: a) for a landing at the destination aerodrome: 11-8 Air Traffic Management (PANS-ATM) 1/11/01 1) to all air traffic services units concerned with the flight during the period of the communication failure; and 2) to all other air traffic services units which may have been alerted; b) for a landing at an aerodrome other than the destination aerodrome: to the ATS unit serving the destination aerodrome; this unit shall then transmit an ARR message to other ATS units concerned or alerted as in a) above. 11.4.2.3 COORDINATION MESSAGES Note.— The provisions governing coordination are contained in Chapter 10. Phraseology to be used in voice communication is contained in Chapter 12. 11.4.2.3.1 Coordination messages comprise: — current flight plan messages (11.4.2.3.2) — estimate messages (11.4.2.3.3) — coordination messages (11.4.2.3.4) — acceptance messages (11.4.2.3.5) — logical acknowledgement messages (11.4.2.3.6). 11.4.2.3.2 CURRENT FLIGHT PLAN (CPL) MESSAGES 11.4.2.3.2.1 Unless basic flight plan data have already been distributed (FPL or RPL) which will be supplemented by coordination data in the estimate message, a CPL message shall be transmitted by each ACC to the next ACC and from the last ACC to the aerodrome control tower at the destination aerodrome, for each controlled flight, and for each flight www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：Air Traffic Management 下
