Contact

Aeronautical Information Management Department
222 Soi Vibhavadi Rangsit 28,
Vibhavadi Rangsit Rd., Chatuchak,
Chatuchak, Bangkok 10900 Thailand

Tel: +662 568 8831

Fax: +662 576 1903

AFS: VTBAYOYX

Email: [email protected]

Email: [email protected]

AIP Supplement for Thailand

AIP SUP

A 05/26

Effective from 12 JAN 2026

to 16 JAN 2026

Published on 11 DEC 2025

  MILITARY AIR EXERCISE IN BANGKOK FIR " CLOSE AIR SUPPORT (CAS) 2026 "

1  INTRODUCTION

Military air exercise named CLOSE AIR SUPPORT (CAS) will take place within the Bangkok FIR from 12 - 16 January 2026 between 0100 - 0900 UTC details are as follows.

2  EXERCISE AREAS

The following area will be designated as a Temporary Reserved Area (TRA), an airspace temporarily reserved for military air exercises, where other traffic is restricted from transiting.

Area (boundary)Vertical limits Period of activity
2.1

CLOSE AIR SUPPORT (CAS AREA)

An area bounded by a line joining points:
151305.60N1002648.10E 145506.33N1005012.64E
145511.19N1012609.13E 163153.56N1012657.90E
163445.16N1004542.24E then along a 30 NM arcclockwise from the Phitsanulok VOR (164613.3N 1001729.0E) to 161637.49N1002209.94E 152356.86N1002215.28E and 151305.60N1002648.10E

GND - FL40012 - 16 Jan 2026
Between
0100 - 0900 UTC
2.2

UAV CORRIDOR (UC)An area bounded by a line joining points:
145000N1005900E 145000N1005900 E
145000N1011400E 144000N1011400E
144000N1005900E 145234N1003935Ethen back to the point of origin.

6,000 ft -11,000 ft12 - 16 Jan 2026
Between
0100 - 0900 UTC

3  LIST OF CLOSED ATS ROUTES

During the exercise period, the following ATS routes will be closed.

ATSRoutesClosed SegmentClosed LevelsRemark
B346BKK - PCBMFA – FL400-
W21BKK - CMPMFA – FL400-
W39NOBER - PCBMFA – FL400-
R474BKK - CMPMFA – FL400-
W8TL - KRTMFA – FL400-

4  CLEARANCE RESTRICTIONS AND FLIGHT PLANNING PROCEDURES

To improve safety, airspace capacity, and flight efficiency during the exercise, flights operating into the affected airspace during 12 - 16 January 2026, between 0100 - 0900 UTC, must follow the clearance restrictions and flight planning procedures outlined in this AIP Supplement.

NOTE.

- For information not listed in this AIP Supplement, refer to the information listed in AIP ENR 1.10 FLIGHT PLANNING and/or related NOTAMs.

4.1 For RNAV capable aircraft

4.1.1  Departure/Overfly flights from VTBD/VTBS/BKK to the following destinations/waypoints shall file flight plan as follows:

Departure/OverflyDestination/OverflyRouting
1VTBD/VTBS/BKKVTPBY27 PIBAN Y29 PSL W26
2VTUDY27 PIBAN Y29 PSL W26 CMP W21
3VTULY27 PIBAN Y29 PSL W27
4VLVT/VTNY27 PIBAN Y29 PSL W26 CMP W21 UDN R470
5VLLB/LPBY27 PIBAN Y29 PSL W26 CMP W21 UDN R470 (For FL260 or above) or Y27 IBUBU W25 NAN R215 TOMIP (For FL250 or below)
6SAGAGY27 IKISU W22 CTR A581 PONUK

Remark: All aircraft concerned are to expect radar vectoring to suit the flow of traffic and/or avoid affected airspace.

4.1.2  Arrival/Overfly flights to VTBD/VTBS/BKK from the following Departure airports/waypoints shall file flight plan as follows:

Departure/OverflyDestination/OverflyRouting
1VTPBVTBDW26 GOKON Y31 PEBLI Y28 BLAFF DCT NAKON
2VTBSW26 GOKON Y31 PEBLI Y28 BLAFF DCT NORTA
3BKKW26 GOKON Y31 PEBLI Y28
4VTUDVTBDY22 KKN Y23 KRT Y20 UBLOD DCT ENDUU
5VTBSY22 KKN Y23 KRT Y20 UBLOD DCT EASTE
6BKKY22 KKN Y23 KRT Y20
7VTULVTBDY31 PEBLI Y28 BLAFF DCT NAKON
8VTBSY31 PEBLI Y28 BLAFF DCT NORTA
9BKKY31 PEBLI Y28
10VTN/VLVTVTBDVTN R470 UDN W21 CMP W26 GOKON Y31 PEBLI Y28 BLAFF DCT
NAKON
11VTBSVTN R470 UDN W21 CMP W26 GOKON Y31 PEBLI Y28 BLAFF DCT NORTA
12BKKVTN R470 UDN W21 CMP W26 GOKON Y31 PEBLI Y28
13VLLB/LPBVTBDVTN R470 UDN W21 CMP W26 GOKON Y31 PEBLI Y28 BLAFF DCT NAKON (For FL260 or above) or
TOMIP R215 NAN W29 PSL Y28 BLAFF DCT NAKON (For FL250 or below)
14VTBSVTN R470 UDN W21 CMP W26 GOKON Y31 PEBLI Y28 BLAFF DCT NORTA (For FL260 or above) or
TOMIP R215 NAN W29 PSL Y28 BLAFF DCT NORTA (For FL250 or below)
15BKKVTN R470 UDN W21 CMP W26 GOKON Y31 PEBLI Y28 (For FL260 or above) or
TOMIP R215 NAN W29 PSL Y28 (For FL250 or below)
16SAGAGVTBDPONUK Y27 DUBEN Y28 BLAFF DCT NAKON
17VTBSPONUK Y27 DUBEN Y28 BLAFF DCT NORTA
18BKKPONUK Y27 DUBEN Y28

Remark: All aircraft concerned are to expect radar vectoring to suit the flow of traffic and/or avoid affected airspace.

4.2 For NON-RNAV capable aircraft

Flight plan for Non RNAV capable aircraft shall operate at FL250 or below.

4.2.1  Departure/Overfly flights from VTBD/VTBS/BKK to the following destinations/waypoints shall file flight plan as follows:

Departure/OverflyDestination/OverflyRouting
1VTBD/VTBS/BKKVTPBA464 BEKOD DCT PSL W26
2VTUDA464 BEKOD DCT PSL W26 CMP W21
3VTULA464 BEKOD DCT PSL W27
4VLVT/VTNA464 BEKOD DCT PSL W26 CMP W21 UDN R470
5VLLB/LPBA464 BEKOD DCT PSL W29 NAN R215 TOMIP
6SAGAGY27 IKISU W22 CTR A581 PONUK

Remark: All aircraft concerned are to expect radar vectoring to suit the flow of traffic and/or avoid affected airspace.

4.2.2  Arrival/Overfly flights to VTBD/VTBS/BKK from the following Departure airports/waypoints shall file flight plan as follows:

Departure/OverflyDestination/OverflyRouting
1VTPBVTBDW26 PSL W9 BLAFF DCT NAKON
2VTBSW26 PSL W9 BLAFF DCT NORTA
3BKKW26 PSL W9
4VTUDVTBDW21 CMP W26 PSL W9 BLAFF DCT NAKON
5VTBSW21 CMP W26 PSL W9 BLAFF DCT NORTA
6BKKW21 CMP W26 PSL W9
7VTULVTBDW27 PSL W9 BLAFF DCT NAKON
8VTBSW27 PSL W9 BLAFF DCT NORTA
9BKKW27 PSL W9
10VTN/VLVTVTBDVTN R470 UDN W21 CMP W26 PSL W9 BLAFF DCT NAKON
11VTBSVTN R470 UDN W21 CMP W26 PSL W9 BLAFF DCT NORTA
12BKKVTN R470 UDN W21 CMP W26 PSL W9
13VLLB/LPBVTBDTOMIP R215 NAN W29 PSL W9 BLAFF DCT NAKON
14VTBSTOMIP R215 NAN W29 PSL W9 BLAFF DCT NORTA
15BKKTOMIP R215 NAN W29 PSL W9
16SAGAGVTBDPONUK A581 CTR W22 PSL W9 BLAFF DCT NAKON
17VTBSPONUK A581 CTR W22 PSL W9 BLAFF DCT NORTA
18BKKPONUK A581 CTR W22 PSL W9

Remark: All aircraft concerned are to expect radar vectoring to suit the flow of traffic and/or avoid affected airspace.

5  ACTION IN EVENT OF EMERGENCY

In case of civil and non-exercise military aircraft experiencing an emergency that makes it necessary to enter an active exercise area should immediately advise one of the following agencies:

UnitsFrequency
BACCSECTOR 1N124.5 MHz or 256.3 MHz
SECTOR 2N126.5 MHZ
SECTOR 3N128.1 MHz or 263.8 MHz
SECTOR 4N120.95 MHz
SECTOR 5N132.1 MHz or 268.5 MHz
SECTOR 6N133.1 MHz or 285.3 MHz
SECTOR 1S120.5 MHz or 256.6 MHz
SECTOR 2S118.35 MHz
SECTOR 3S125.7 MHz or 268.5 MHz
SECTOR 4S133.9 MHz
SECTOR 5S135.5 MHz or 285.5 MHz
SECTOR 6S123.95 MHz or 265.9 MHz
BANGKOK APPROACHAPP North 133.4 MHz
APP East 119.1 MHz, 122.35 MHz or 262.5 MHz
APP West 124.35 MHz, 125.2 MHz or 262.5 MHz
PHITSANULOK APPROACH120.7 MHz or 284.0 MHz
KAMPHAENG SAEN APPROACH127.75 MHz or 347.2 MHz
OSCAR CONTROL127.0 MHz or 331.3 MHz
FOCAL CONTROL127.0 MHz or 331.3 MHz
U-TAPAO APPROACH119.7 MHz or 273.3 MHz (Primary)
134.5 MHz or 238.3 MHz (Secondary)
U-TAPAO TOWER118.3 MHz or 227.0 MHz
KHORAT APPROACH129.75 MHz or 349.0 MHz
KHORAT TOWER122.2 MHz or 240.5 MHz
KHON KAEN APPROACH123.4 MHz or 240.0 MHz

6  AIR TRAFFIC FLOW MANAGEMENT DURING CLOSE AIR SUPPORT (CAS) 2026 PERIOD

In response to the capacity constraint caused by the Military Air Exercise the following ATFM measures will be implemented:

6.1 Ground Delay Program (GDP)

The Ground Delay Program (GDP) may be implemented during the traffic congestion period. ATFM procedure is published in AIP Thailand
ENR 1.9

6.2 Temporary Flight Level orientation scheme

Flights operating on the following routes are requested to use the following flight level orientation scheme:

6.2.1  Northbound flight from VTBD, VTBS, BKK via A464 (portion BKK CMA), Y26, or Y27
and flight depart from VTPI, VTBL, VTBH, VTPP via W9 - ODD FL

6.2.2  Southbound flight to VTBD, VTBS, BKK via Y7, Y28 or W9 or other airways joining W9 - EVEN FL

7  POINT OF CONTACT

UnitsContact Details
Live Fly Cell of CLOSE AIR SUPPORT (CAS) 2026Sqn.Ldr.Kasidit PhilaMobile: +668 8915 4995E-mail: [email protected]
Bangkok Air Traffic Flow Management Unit Phone: +662 287 8024E-mail: [email protected]: http://atfm.aerothai.aero AFTN: VTBBZDZX

Airspace Management Cell (Thailand)

For AUP/UUP

Phone: +662 307 2132Mobile: +666 1402 4966E-mail: [email protected] Website: www.thaicmac.aerothai.aero

8  VALIDITY

This AIP Supplement will remain current until 16 January 2026. Any change to this AIP supplement will be promulgated by NOTAM.

9  EXERCISE AREA MAP