ACAS inop

[Diabolo]

Hello,

Our MEL accept an INOP ACAS.
As far as know ACAS is mandatory since Jan 2000 in EU airspace for Aircraft heavier then 15000kgs.
I found an exemption form for test, delivery and maintenance flight.
So assuming that our ACAS is U/S the Aircraft should be grounded. Isn't it ?
Any document on this ?
Thanks,

[Capt Pit Bull]

Just one of many systems that it is mandatory to have fitted, but aceptable to be inop.

CPB

[Gary Lager]

Though ATC need to be informed, and grant permission (usually just a case of amending your flightplan and having it accepted).

[Cough]

Gary...Errrrm. Has there been a change recently to that effect?

[PPRuNe Radar]

In UK airspace:

4.4 Operation of Aircraft When ACAS II is Unserviceable

4.4.1 The current TCAS II Minimum Equipment List permits TCAS II equipped aircraft to operate for up to 10 days with the equipment out of service. This position will be kept under review.

4.4.2 Due to the safety benefits arising from TCAS operations and the collaborative way in which it arrives at collision avoidance solutions any aeroplane with an unserviceable transponder as well as an unserviceable TCAS will not be permitted in UK airspace for which mandatory carriage of a transponder is required.

(Source: UK AIP)