Aviation State Engagement Forum
The Joint Airspace Control Cell (JACC) requests feedback on proposed temporary restricted area (TRA) and procedures for Exercise DIAMOND SEAS 2026.
The issue
Elements of the Royal Australian Air Force (RAAF) will be conducting Exercise 'DIAMOND SEAS 2026' on 13 February 2026. One TRA is proposed to safely separate civil aircraft from exercise activities on 13 February 2026.
KEY ISSUES
- Conditional status of TRA Nimbus west of RAAF Amberley will be RA2.
- Multiple air routes affected. Diversion routes to be published in AIP SUP.
- Access to TRA is limited to exercise participant, aircraft with a declared emergency or aircraft undertaking operations for the preservation of life and/or property.
Proposal
One TRA is proposed to support exercise operations. Indicative timings are listed in Table 1, with specific activation timings to be promulgated by AIP Sup and Notice to Airmen (NOTAM).
|
Airspace |
Date |
Time |
|
TRA 'NIMBUS' |
13 February 2026 |
NOTAM |
Diversion Routes
This airspace proposal has an effect on ATS routes passing west of Brisbane, Qld. Diversion routing will be required during the periods of MILEX airspace activation. Diversion routes will be developed in consultation with Airservices Australia, and shall be published in the AIP SUP.
Access to TRA ‘NIMBUS’
During NOTAM activation periods, access to TRA ‘NIMBUS’ by non-exercise aircraft will not be available except in cases of a declared emergency, radio failure or participating in activities for the preservation of life and property (SAR, MED, POL or FFR).
YBBB/TRA ‘NIMBUS’
Conditional Status: RA2
Military Flying
Lateral Limits: 265722S 1485538E – 265738S 1494403E – 281000S 1494800E – 291542S 1500721E – 291523S 1492858E – 285713S 1485340E – 265722S 1485538E
Vertical Limits: 10 000FT AMSL - NOTAM
Hours of Activity: NOTAM
Controlling Authority: 452SQN Amberley Flight Commander
