Responding to a Resolution Advisory

[Mr. Green]

Do any of you out there know what is the proper (or standard) phraseology one must use towards ATC (be in on HF/VHF) when you are responding to a TCAS RA?

Cheers

[Chesty Morgan]

As far as I can recall at the moment.

*Callsign* TCAS Climb/Descent.

*Callsign* TCAS Climb/Descent completed Alt/Fl resumed

*Callsign* TCAS Climb/Descent returning to Alt/FL

*Callsign* Unable to comply, TCAS Resolution Advisory

CM

[BitMoreRightRudder]

Did one the other day and my colleague called 'xx123 clear of conflict returning FLXXX' when clear of the conflicting traffic. Don't remember if that is standard or not.

[FlapsOne]

Verbatim from Cap 413, your options are

“TCAS Climb/Descent”
“Clear of Conflict, returning to FL xxx”

If unable to report it at the time, do it afterwards

“TCAS Climb/Descent, Clear of conflict, FL xxx resumed”

If given a heading but unable

“Unable to comply, TCAS RA”

[alf5071h]

See the information on TCAS / ACAS from Eurocontrol linked from here Wrong reaction to “Adjust Vertical Speed” RA

[BitMoreRightRudder]

Does the Adjust Vertical Speed RA still trigger the red visual guidance bars on the PFD? Just wondering what causes the incorrect pilot input in so many cases. I haven't encountered that particular RA as yet!

[FlapsOne]

Guess it depends what you fly.

The 'Bus gives a green area on the VS tape that corresponds to the reduction of climb or descent required.