IFPS

QUESTIONS

 Describe the IFPUV principles of work?

POINTS TO REMEMBER

The IFPS requirements

FPL submission rules

Flight data message flows

The IFPUV service

References: Eurocontrol IFPS users manual (2010, 14.1th edition)

ITEM II

THE IFPS

OPERATIONAL REPLY MESSAGES

Chynchenko Yu.V.

GENERAL

Operational Reply Messages (ORMs) – ACK, MAN, REJ, – shall be used by the IFPS to indicate to a message originator the status of the processing of a submitted message

ACKNOWLEDGEMENT MESSAGE

The acknowledgement (ACK) message is a means whereby the IFPS indicates successful processing of a submitted message against the environmental data held by the CFMU at the time of processing that message

Automatic processing in the IFPS may not mean that the flight plan has been accepted by the IFPS without modifications. The IFPS shall, for example, automatically insert the name of a suitable route between two points if none has been indicated in the received message

ACK EXAMPLE

MANUAL MESSAGE

The manual (MAN) message shall be used to indicate to the message originator that errors have been detected in the submitted message and that it has been referred for manual processing by the IFPS staff

Where a submitted message fails automatic processing by the IFPS, that message shall, in most cases, be presented for manual treatment, at which time a MAN message shall be sent to the message originator

After a delay for the necessary manual processing, a MAN message shall be followed either by an ACK message if the submitted message has been successfully corrected by the IFPS staff, or by a REJ message

MAN EXAMPLE

REJECT MESSAGE

The reject (REJ) message shall be sent to the message originator to indicate that the submitted message could not be processed successfully, either automatically or manually, and that the submitted message has not been accepted and processed by the IFPS

Each REJ message shall contain an error list (to a maximum of 10) giving the nature of the errors in free text followed by the offending field or fields

Message originators shall always react to the reception of a REJ message by amending the original message appropriately for the error message(s) and re-submitting the corrected message to the IFPS

REJ EXAMPLE