CASA seeks feedback on new instrument flight procedures guidance.
CASA has opened consultation on Draft Advisory Circular AC 91-27, a single guidance document for instrument flight procedures. Feedback is via the Consultation Hub and closes 18 March 2026.
What it is
CASA is consulting on a draft advisory circular, AC 91-27 – Instrument flight procedures (operational information). The goal is a single, clear guidance document for accepted industry procedures as IFR procedures have become more complex
Why it matters
The draft AC aims to:
- Provide information on the use of instrument flight procedures in Australia
- Explain the reasons for and background to industry practices for instrument flight
- Clarify safety precautions to be used with instrument flight procedures
What the draft covers
Operational guidance and clarity across:
- Background to IFR flight
- Airspace and ground infrastructure requirements
- Instrument approach procedures
- Non-precision approaches (NPAs)
- Approach procedures with vertical guidance (APVs)
- Precision approach procedures (PAs)
- Procedure entry, holding, and noise abatement procedures
- Precision runway monitor (PRM) instrument approach procedures
- Helicopter procedures
Who it is for
Pilots, instructors and flight examiners, air operators, and air traffic control
How to respond
Submit feedback via the CASA Consultation Hub survey
Closes: 18 March 2026
Source: https://consultation.casa.gov.au/regulatory-program/draft-ac-91-27-v1-0/
