Originally Posted by
Bus Driver Man
The NAV ADR 1 FAULT should trigger and will ask you to:
AIR DATA SWTG........................................................ ......................................................CAPT 3
ADR 1 P/B........................................................... ............................................................ .......OFF
If not, use the QRH ADR CHECK PROC which refers to UNRELIABLE SPEED INDICATION and subsequent AFFECTED ADR IDENTIFICATION.
That should happen. However, ECAM procedures obviously do have some issues at times. Had an IR/ADR 2 fault during line flying once. ECAM only indicated an ADR 2 fault without the action line telling us to switch ADR 2 off. It just told us to switch air data to FO 3, nothing more. ECAM actions complete there was still no map indication, no ADI indication for the FO, just altitude and speed, although the altitude swung around by roughly 300ft at first and finally stayed roughly 100ft higher than the other two altimeters.