Aviation English
Phonetic Alphabet

ما هو سييرا؟

سييرا The letter 'S' as spoken in the ICAO phonetic alphabet, used in ATC phraseology to identify taxiways, holding points, and aircraft callsigns.

Source: ICAO Doc 9432, FAA PCG

How is “سييرا” Used in Practice?

بعد الهبوط، غادر المدرج 12 عبر سييرا واتصل بالمراقبة الأرضية على 121.9 للتاكسي إلى الموقف.

Certification Exam Relevance

ICAO Level 4ICAO Level 5ICAO Level 6EASA FCL.055

Who Needs to Know This Term?

  • Pilots
  • Air Traffic Controllers
  • Cabin Crew

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Frequently Asked Questions

ما هو سييرا؟

The letter 'S' as spoken in the ICAO phonetic alphabet, used in ATC phraseology to identify taxiways, holding points, and aircraft callsigns.

Where can I learn this term for free?

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