"INDONESIA-156 approach 4000" [INDONESIA-156 maintain 4000 feet] "maintain" [INDONESIA-156 descend to 3000 feet resume own navigation for letf hand downwind runway 22 Batam QNH 1013] Terdengar arahan suara dari menara kontrol, Air Traffic Control atau yang biasa disingkat ATC. "Descend 3000 for downwind INDONESIA-156," jawab pilot yang siap menurunkan pesawat dari ketinggian 4000 kaki, menjadi 3000 kaki. [INDONESIA-156 contract Tanjung Pinang Approach 130.2 good day] "130.2 good day" "Tanjung Pinang INDONESIA-156 descend 3000 Cleared by Singapore" [INDONESIA-156 Tanjung Pinang Director Selamat sore bapak identified, descend to 2000 feet, fly heading 030 vectoring for VOR approach runway 22 Batam] "Descend 2000 and maintain heading INDONESIA-156" "Request left heading 310 for vis

