36.24 Instruments and Avionics

36.24.2 State the CAR Part 121 requirements for a ground proximity warning system (GPWS).

121.379 Ground proximity warning system 

(a) Except as provided in paragraph (b), a holder of an air operator certificate must ensure that a turbine powered aeroplane being operated under that certificate is equipped with GPWS.

(b) The holder of an air operator certificate is not required to comply with paragraph (a) if the aeroplane is equipped with a TAWS Class A.

36.24.4 State the CAR Part 121 requirements for a terrain awareness and warning system (TAWS).

121.381 Terrain awareness and warning system (TAWS)

(a) A holder of an air operator certificate must ensure that a turbine powered aeroplane manufactured on or after 1 April 2002 and being operated under that certificate is equipped with a TAWS Class A.

(b) Except as provided in paragraph (c), a holder of an air operator certificate must ensure that a turbine powered aeroplane manufactured before 1 April 2002 and being operated under that certificate is equipped with a TAWS Class A by 1 July 2005.

(c) A holder of an air operator certificate is not required to equip a turbine powered aeroplane manufactured before 1 April 2002 with a TAWS Class A until 1 January 2007 if—