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]

AIP Supplement for Thailand

AIRAC AIP SUP

B 12/25

Effective from 10 JUL 2025

to UFN

Published on 29 MAY 2025

TEMPORARY RESTRICTION OF TRANG DVOR/DME (VTST)

1 INTRODUCTION

With effect from 10 July 2025 at 0001 UTC, the purpose of this AIRAC AIP Supplement is to inform pilots and operators of the temporary restriction of the use of TRANG DVOR/DME (TRN) frequency 116.6 MHz, CH 113X, which will be unavailable on ATS route W14 (TRANG DVOR/DME (TRN) (073032N 0993734E) – PADPA (071700N 0995532E) – HAT YAI (065603N 1002316E)) at altitudes above 25,000 feet above mean sea level (AMSL) due to frequency signal interference.

2 THE PERIOD OF TEMPORARY RESTRICTIONS

Temporary restriction of TRANG DVOR/DME (TRN) will be from 10 July 2025 at 0001 UTC until further notice.

3 CONTACT

Air Traffic Navigation System Engineering Department, Aeronautical Radio of Thailand Ltd.

E-mail: [email protected]

4 VALIDITY

This AIRAC AIP Supplement will remain current until further notice. Any changes to this AIRAC AIP Supplement will be notified by NOTAM.