The message header is always the first part of the communication i.e. Hi John is not permitted!
The header consists of four or five lines but sometimes a reply from the coordinator may include a sixth line.
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SCR |
Message type i.e. SCR, SMA, SIR, SAQ SCR = Slot Clearance Request/Reply |
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/ |
Optional reference line. If message is sent by email, your email address should be here |
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S09 |
IATA schedules season |
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05FEB |
Todays date (format DDMMM) |
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LHR |
Airport slot clearance request is for |
A coordinators response may include REYT/your reference as a sixth line after the airport.
IATA schedules seasons there are two seasons: Summer and Winter. The season changes when the clocks change in Europe between daylight savings time and standard time.
Summer starts on the last Sunday in March through to the Saturday of the last weekend in October
Winter starts on the last Sunday in October through to the Saturday of the last weekend in March
NOTE: the season does not change when the calendar year changes.
Example of season dates:
W08 26OCT2008 to 28MAR2009
S09 29MAR2009 to 24OCT2009
W09 25OCT2009 to 27MAR2010
S10 28MAR2010 to 30OCT2010