2.18 Loss of Communications - ATS Equipment Failure 

2.18.2 State the occasions when TIBA might be introduced.

TIBA means Traffic Information Broadcast by Aircraft.

Full details of TIBA procedures are contained in AIPNZ Volume 4, ENR Section 1.8.

TIBA may be introduced when there is a disruption or failure of ATS/ATC services, meaning pilots may need to provide their own traffic information and separation awareness.

This may occur when:

• ATC communication equipment fails
• ATS services are disrupted
• Normal air traffic control separation cannot be provided
• Aircraft are required to operate using pilot-to-pilot traffic broadcasts

If the disruption is expected or planned, details of the TIBA procedures, affected area, frequencies, and times will normally be published by NOTAM.

The purpose of TIBA is to help pilots maintain situational awareness by broadcasting their position, altitude, intentions, and other relevant traffic information.

2.18.4 Detail the TIBA procedures with respect to:

(a) VHF frequencies to be used;

Pilots should follow any frequency instructions issued by ATS.

If no frequency instructions have been issued, and there is a complete ATS communication failure, pilots should refer to the appropriate TIBA frequency map: