Japan Schedule Coodination / Japan Aeronautic Association

The slot monitoring program is conducted in Japan according to WSG and it is applied to all level 2 and level 3 airports facilitated/ coordinated by JSC. The purpose of this monitoring is mainly the calculation of 80/20, misuse of slots and on time performance (OTP). Slot monitoring is divided in two parts; Pre-Operation Analysis and Post-Operation Analysis. The results of the monitoring will be reported at the occasion of Airport Coordination Committee (ACC).

JCAB NOTIFICATION_Japanese
JCAB NOTIFICATION_English

According to requirements set by JCAB, JSC is asking ALL airlines to indicate the reason for slot returns/ schedule cancellations within SI field of your SCR/SMA as below.

- It is mandatory requirement for all airlines to utilize “SI field of SMA” and indicate the reason for
ALL schedule cancellations (1 week or more) after Series Return Deadline at level 2 airports, facilitated by JSC.
- It is mandatory requirement for all airlines to utilize “SI field of SCR” and indicate the reason for
Series of slot returns (5 weeks or more) after Series Return Deadline at level 3 airports, coordinated by JSC.
- It is mandatory requirement for all airlines to utilize “SI field of SCR” and indicate the reason for
ALL slot returns (1 week or more) after Historic Baseline Date at level 3 airports, coordinated by JSC.

>> If a definite reason for the cancellation is not indicated in above cases, such slot return/ schedule cancellation shall be regarded as a misuse and JCAB may takes measures toward the initial coordination for the next equivalent season.