NCO.IDE.H.170 Emergency locator transmitter (ELT)

(a) Helicopters certified for a maximum passenger seating configuration above six shall be equipped with:

(1)  an automatic ELT; and

(2)  one survival ELT (ELT(S)) in a life-raft or life-jacket when the helicopter is operated at a distance from land corresponding to more than 3 minutes flying time at normal cruising speed.

(b) Helicopters certified for a maximum passenger seating configuration of six or less shall be equipped with an ELT(S) or a personal locator beacon (PLB), carried by a crew member or a passenger.

(c) ELTs of any type and PLBs shall be capable of transmitting simultaneously on 121,5 MHz and 406 MHz.