CASA Drone Operating Safety Case (OSC)

Overview

Draft and validate the Operating Safety Case (OSC) for complex drone operations in Australia under CASA and CASR Part 101. SORA-aligned risk assessment (GRC, ARC, SAIL) and no-fly zone check against Australian PRD airspace. Logistics and agriculture.

Getting Started

Add your source materials to the project workspace, then activate the CASA Drone Operating Safety Case (OSC) skill. The agent will guide you through the process step by step.

Example conversation

Session where a user requests an OSC for BVLOS crop monitoring in regional NSW and runs the no-fly zone check.

You: We need an Operating Safety Case for BVLOS crop monitoring in regional NSW — 5 km corridor, 60 m AGL, multi-rotor MTOM 4 kg. Operations are in Class G. Can you draft the OSC and run the no-fly zone check on our waypoints file?

Agent: I’ll create the OSC from the template and populate it for your BVLOS operation. Volume 1 covers your organisation, BVLOS operations, aircraft and pilot competency (RePL, BVLOS), lost-link behaviour (RTH), and maintenance. Volume 2 covers the multi-rotor specs, GNSS, C2 link, and RTH/geofence. For Volume 3 I’m drafting the risk assessment using SORA: ground risk (GRC — low population density, exclusion zones) and air risk (ARC — Class G, procedural mitigations). I’ve run no_fly_zone_check on your waypoints file: 12 waypoints found within Australian bounds. You need to verify these against CASA OAR 088/25 and current NOTAMs; I’ve documented that in the OSC. Running validate_osc_structure now.

Agent: Validation: all three volumes and key sections present. One WARNING — a few placeholders ([Company name], [Date]). I’ll replace those with your details. After that the structure is complete for CASA submission.

Excerpt from a generated OSC

Below is an excerpt from Volume 3 — Risk Assessment produced with this skill for a BVLOS agriculture operation.

### 3.2 Ground Risk (SORA GRC)

- **Hazard identification:** Persons and property on the ground along the corridor; farm vehicles; no overfly of assemblies.
- **Intrinsic ground risk (iGRC) / final GRC (fGRC):** Low population density (regional); mitigations: exclusion zones, sheltering assumptions per CASA guidance. fGRC acceptable for the operation.
- **Control measures:** Corridor away from dwellings and crowds; lost-link RTH; no operations in high wind. Pre-flight PRD and NOTAM check.
- **Residual risk:** Accepted as low.

### 3.3 Air Risk (SORA ARC)

- **Hazard identification:** Other airspace users in Class G.
- **Air risk class (ARC):** Mitigations: procedural segregation, NOTAM, coordination. ARC acceptable.
- **PRD / no-fly check:** Waypoints cross-referenced via no_fly_zone_check; operator to verify against CASA OAR 088/25 and NOTAMs. Documented in Operations Manual.

Extension tools

• validate_osc_structure — Validates an OSC document against CASA/CASR Part 101 structure: Operations Manual, Technical Manual, Risk Assessment, key subsections (including SORA GRC/ARC), and unfilled placeholders. Run after drafting or revising an OSC.
• no_fly_zone_check — Cross-references proposed coordinates (from a file) with Australian PRD airspace. Validates coordinate format and Australian bounds; reports waypoints and reminds the operator to verify against CASA OAR 088/25 and NOTAMs. Use for the planned flight path and document the outcome in the OSC.