Deviation #70

applicable to Pressure Instruments (ETSO-C47a) and Electric Tachometer: Magnetic Drag (Indicator and Generator) (ETSO-C49b)

ETSO-C47a#3 Pressure Instruments Deviate from SAE AS408C section 4.1.4 and provide approximately the same size for the title, the numerals, and the units of measure instead of using different letter sizes. 

ETSO-C47a#4 Pressure Instruments Deviate from ETSO-C47a 4.2 and SAE AS 408C and do not mark the unit with the explosion and fire resistance category, for display equipment not fitted with pressure sensor. 

ETSO-49b#6 Electric Tachometer: Magnetic Drag (Indicator and Generator) Deviate from SAE AS 404C section 4.1.1 and provide an up-stretching tape indicator as per ARP 4102-7 Appendix C (fix tape – engine) or ARP 4102-7 Appendix A (moving tapes – EADI) plus a digital indication instead of a pointer and a dial. 

 

 

Comments are invited and should be sent by mail or electronic mail (preferred means), no later than the indicated deadline.