1 INTRODUCTION

1.1 Due to RSAF operational requirements, airspace closures have been planned from 17 June 2021 to 14 August 2021.

2 CLOSURE OF AIRPORTS AND AIRSPACE RESTRICTIONS

2.1 Singapore Changi Airport and Changi Control Zone will be closed to all operations during the times listed in column (b) of the schedule in Annex A.

2.2 Seletar Airport and Seletar CTR will be closed to all operations during the times listed in column (c) of the schedule in Annex A.

2.3 Sembawang ATZ, Tengah ATZ, Paya Lebar CTR, and Light Aircraft Training Areas “A”, “B” and “C” will be closed during the times stated in columns (d), (e) and (f) of the schedule in Annex A. During the Paya Lebar CTR closure timings, flight planning via SINJON for all Seletar departures and arrivals will not be available.

2.4 Altitudes of flights on Airway G579 between JB / SJ within Singapore FIR and Airway B469 between SJ / PU will be restricted during the times stated in column (f) of the schedule in Annex A.

2.5 As many flights are expected to arrive at and depart from Singapore Changi Airport shortly before and after the closure of Changi CTR, airline operators are advised to plan their flights to arrive or depart well before or after the closure of Changi CTR to avoid delays.

2.6 Aircraft operators are advised to take into consideration possibilities of airborne delay and plan for sufficient fuel for at least 20 minutes of holding.

2.7 Departing aircraft from Singapore Changi Airport will be facilitated to ensure sufficient lead-time to clear the Changi CTR prior to closure. The last departing aircraft shall take off not later than 3 minutes before the airport closure time.

3 AIR TRAFFIC FLOW MANAGEMENT (ATFM) MEASURES FOR FLIGHTS ARRIVING AT SINGAPORE CHANGI AIRPORT

3.1 ATFM measures, where necessary, will be in place to regulate the air traffic flow to match the prevailing capacity prior to and after the re-opening of Singapore Changi Airport. Please refer to AIP Singapore ENR 1.9 for details on ATFM procedures.

3.2 When ATFM ground delay programme are implemented, inbound flights into Singapore Changi Airport which are issued with a Calculated Take-Off Time (CTOT) shall comply with the restriction. The compliance window of minus 5 / plus 10 minutes will be measured for CTOT. For the purpose of manning the delays, flights that are non-compliant or not part of the ground delay programme can expect to receive tactical ATC actions.