Product Certification Consultations and Publications

Deviates from ETSO-C142a by using RTCA DO-227A, corrected to permit the use of an appropriate limiting voltage for the Cell Discharge Current Test, instead of DO-227 modified by Appendix 1 of ETSO-C142a

Deviates from ETSO-C142a by using RTCA DO-227A with a corrected sequence for the end-item testing instead of DO-227 modified by Appendix 1 of ETSO-C142a.

Deviates from ETSO-C142a by using RTCA DO-227A with a corrected testing pattern for battery humidity test instead of DO-227 modified by Appendix 1 of ETSO-C142a

Applicable to Large Aeroplanes