EASA subject
STS Procedures
Standard scenarios STS-01, STS-02
STS enables simplified operations by declaration — but only when all scenario conditions are met.
Key concepts
- Declaration
- The operator submits an operational declaration — an individual authorisation is not always required.
- C5/C6
- Dedicated UAS classes with separate requirements per scenario.
- Mitigations
- Risk-reduction measures: distance, height limits, and an observer.
Common mistakes
- Assuming STS is only one topic among 60 exam questions
- Treating a declaration as permission to fly anywhere
Exam traps
- When a declaration is required
- FTS/parachute — when it applies
Real-world example
An operator declared STS-01 but exceeded the height limit — the scenario conditions were breached.