SCR

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​How to Request a Slot

 

SCR – Slot Clearance Request/Reply

An SCR is composed of 3 parts Header, Data line(s) and Footer
HEADER
SCR = name of the message
/ Creator Reference
W10 (IATA SEASON W10 – Winter 2010 / S10 – Summer 2010)
10JAN = date of message
LIS = airport of clearence
DATA LINES
ZXXXXX XXXXX AAAAAAAAAA 1234567 BBBCCC DDDEEEE FFFFGGG HH
FOOTER
GI Brgds
1. Z : ACTION CODE
Action Code for operators
N - for new flights
C - for flights I want to change (data to be changed) always followed by a new line starting with R
R – new data line
D - for flights to be cancelled
A – acceptance of an offer
P – pending of an offer (keeping the initial required times in waitlist for future improvement)
Z – declining offer
Action Code for coordinators
K – confirmed flight
U – unable to allocate requested time
O - offer for closest time available
X – flight cancelled
2. XXXXX : FLIGHT NUMBER
For operators having flight numbers the first digits represents the IATA or ICAO code followed by 3 or 4, numeric as the fight number
3. AAAAAAAAAA : PERIOD OF OPERATION
Date and month, for example a single date, 03MAY or for a period, 03MAY28JUN
4. 1234567 : DAY(s) OF OPERATION

1 to 7 is Monday to Sunday, for example a Monday operation, 1000000, or a weekend operation, 0000067
5. BBB : NUMBER OF SEATS
Number of seats in the aircraft for example 048. For cargo or positioning flights use 000
6. CCC : AIRCRAFT TYPE
IATA aircraft subtype code 3 digits. When there is no IATA code please use code XXX and mentioned in SI the ICAO code 4 digits, for example PRM1
7. DDD : AIRPORT OF ORIGIN

IATA airport code 3 digits. When there is no IATA code please use code XXX and mentioned in SI the ICAO code 4 digits, for example LPCS
8. EEEE / FFFF: TIME OF ARRIVAL / TIME OF DEPARTURE
Arrival / Departure time scheduled is always in UTC
For LIS, OPO, FNC and FAO
UTC: Winter = local time / Summer = local time –1
For PDL
UTC: Winter = local time - 1 / Summer = local time
9. GGG : AIRPORT OF DESTINATION

IATA airport code 3 digits. When there is no IATA code please use code XXX and mentioned in SI the ICAO code 4 digits, for example LPCS
10. H: TYPE OF SERVICE
Type of service:
J = Schedule passenger
C = Charter passenger
H = Charter cargo
F = Schedule cargo
P = Positioning
K = Training
W = Military
E = Special Government
I=State/Diplomatic/Air..ambulance T = Technical Test
11. SI/GI : SUPPLEMENTARY/GENERAL INFORMATION
It is mandatory that any free text following the data line(s) always starts with ‘SI’ or ‘GI
12. EXAMPLES

a) New turnaround flight arriving and departing same day
SCR
W10
12DEC
LIS
NAF456 AF457 01JAN19MAR 1234500 097100 CDGNCE1200 1300NCECDG CC
Reply from Coordinator confirming the slot
SCR
W10
12DEC
LIS
KAF456 AF457 01JAN19MAR 1234500 097100 CDGNCE1200 1300NCECDG CC
GI BRGDS SLOT COORD PORTUGAL ….
Or reply from Coordinator with an offer
SCR
W10
12DEC
LIS
OAF456 AF457 01JAN19MAR 1234500 097100 CDGNCE1230 1330NCECDG CC
GI BRGDS SLOT COORD PORTUGAL ….
If the offer is declined, with action code Z, no slot will be hold for the flight. So is always recommend that offers are accepted, action code A or pending, action code P
SCR
W10
12DEC
LIS
PAF456 AF457 01JAN19MAR 1234500 097100 CDGNCE1230 1330NCECDG CC
SI we would like to be on waitlist
GI BRGDS ….

b) Change of aircraft type and time
SCR
W10
12DEC
LIS
CTP456 TP457 01JAN19MAR 1234500 097100 CDGNCE1200 1300NCECDG CC
RTP456 TP457 01JAN19MAR 1234500 049ER4 CDGNCE1300 1400NCECDG CC

Reply from the coordinator confirming the slot
SCR
W10
12DEC
LIS
XTP456 TP457 01JAN19MAR 1234500 097100 CDGNCE1200 1300NCECDG CC
KTP456 TP457 01JAN19MAR 1234500 049ER4 CDGNCE1300 1400NCECDG CC
GI BRGDS SLOT COORD PORTUGAL …
c) Cancellation of an existing flight
SCR
W10
12DEC
OPO
DLH234 LH235 01JAN 139320 FRA1230 1330FRA JJ
SI due to WX
GI BRGDS …
Reply from the coordinator confirming the withdraw of the slot
SCR
W10
12DEC
OPO
XLH234 LH235 01JAN 139320 FRA1230 1330FRA JJ
GI BRGDS SLOT COORD PORTUGAL ….